List of Microsoft codenames#Longhorn

{{short description|None}}

{{Use mdy dates|date=May 2024}}

Microsoft codenames are given by Microsoft to products it has in development before these products are given the names by which they appear on store shelves. Many of these products (new versions of Windows in particular) are of major significance to the IT community, and so the terms are often widely used in discussions before the official release. Microsoft usually does not announce a final name until shortly before the product is publicly available. It is not uncommon for Microsoft to reuse codenames a few years after a previous usage has been abandoned.

There has been some suggestion that Microsoft may move towards defining the real name of their upcoming products earlier in the product development lifecycle to avoid needing product codenames.{{cite web | url=http://blogs.seattletimes.com/brierdudley/2006/05/02/fun_with_microsoft_code_names_1/ | title=Fun with Microsoft code names | date=May 2, 2006 | access-date=2006-07-23 | first=Brier | last=Dudley | work=Brier Dudley's blog | publisher=The Seattle Times Company | archive-date=2014-02-24 | archive-url=https://web.archive.org/web/20140224025602/http://blogs.seattletimes.com/brierdudley/2006/05/02/fun_with_microsoft_code_names_1/ | url-status=dead }}

Operating systems

=Windows 3.x and 9x=

class="sortable wikitable"
Codename Edge

!Preliminary name Edge

!Final name Edge

!Notes

!Ref

Janus

|{{N/a}}

|Windows & MS-DOS 5

|Combined bundle of Windows 3.1 and MS-DOS 5. Janus is a Roman god usually depicted with two faces, here symbolizing the previously separate Windows and MS-DOS products.

|Comes v Microsoft. [http://antitrust.slated.org/www.iowaconsumercase.org/TP011907.txt Transcript of Proceedings, Volume XXXIV] {{Webarchive|url=https://web.archive.org/web/20210113020844/http://antitrust.slated.org/www.iowaconsumercase.org/TP011907.txt |date=2021-01-13 }}

Jastro

|{{N/a}}

|Windows & MS-DOS 6

|Combined bundle of Windows 3.1 and MS-DOS 6. Portmanteau of Janus and Astro, the codename of MS-DOS 6.

|Comes v Microsoft. [http://antitrust.slated.org/www.iowaconsumercase.org/assets/attachments/2_6_07_Schulman_Deposition.pdf Deposition of Andrew Schulman, Volume 2]

Sparta, Winball

|Windows 3.1 Plus

|Windows for Workgroups 3.1

|Windows 3.1 (16-bit) with enhanced networking; designed to work particularly well as a client with the new Windows NT.

|{{cite magazine |url=https://books.google.com/books?id=XlEEAAAAMBAJ&pg=PA39 |title=Windows to boost data sharing |magazine=InfoWorld |date=May 18, 1992 |first=Stuart |last=Johnston |volume=14 |issue=20 |page=39}}{{cite journal |url=https://books.google.com/books?id=kREEAAAAMBAJ&pg=PA2 |title=Early users detail features of Windows pack |journal=Network World |date=April 27, 1992 |first=Margie |last=Wylie |volume=9 |issue=17 |page=2}}

Snowball

|{{N/a}}

|Windows for Workgroups 3.11

|An updated version of Windows for Workgroups 3.1, which introduces 32-bit file access and network improvements. It also removes the Standard Mode, effectively dropping support for 16-bit x86 processors.

|{{cite journal |url=https://books.google.com/books?id=nREEAAAAMBAJ&pg=PA4 |title=Reworking Windows for Workgroups |journal=Network World |date=July 19, 1993 |first=Frederic |last=Paul |volume=10 |issue=29 |page=4}}

Chicago

|Windows 4.0, Windows 93, Windows 94

|Windows 95

|For codenames of some of the internal components of Windows 95, see "Jaguar", "Cougar", "Panther" and "Stimpy" under {{section link

OS components}}

|{{cite magazine |url=https://books.google.com/books?id=nToEAAAAMBAJ&pg=PA30 |title=Delay of Windows 95 spells relief for many developers |magazine=InfoWorld |date=January 9, 1995 |first=Ilan |last=Greenberg |volume=17 |issue=2 |page=30}}{{cite web

|url=http://iowa.gotthefacts.org/011607/5000/PX05516.pdf

|title=Chicago Feature Specification

|date=1992-09-30

|access-date=2010-03-02

|archive-date=2017-06-28

|archive-url=https://web.archive.org/web/20170628110747/http://iowa.gotthefacts.org/011607/5000/PX05516.pdf

|url-status=live

}}

Detroit

|{{N/A}}

|USB Supplement to Windows 95 OSR2

|Named after Detroit, Michigan. A writer for Maximum PC suggested that "Detroit" and other Windows 95-era names were answers to the question posed by Microsoft's "Where do you want to go today?" marketing campaign.

|{{cite web |url=http://www.maximumpc.com/article/news/microsoft_unveils_official_name_windows_7 |title=Microsoft Unveils the Official Name for "Windows 7" |first=Mark Edward |last=Soper |date=October 14, 2008 |access-date=2009-05-23 |work=Maximum PC |publisher=Future US |archive-date=2015-04-19 |archive-url=https://web.archive.org/web/20150419030040/http://www.maximumpc.com/article/news/microsoft_unveils_official_name_windows_7 |url-status=live }}

Nashville

|Windows 96

|{{Dropped}}

|Named after Nashville. Cancelled upgrade for Windows 95; sometimes referred to in the press as Windows 96. Codename was reused for Internet Explorer 4.0 and Windows Desktop Update which incorporated many of the technologies planned for Nashville.

|Comes v. Microsoft. [http://antitrust.slated.org/www.iowaconsumercase.org/011607/3000/PX03208.pdf Plaintiff's Exhibit 3208] {{Webarchive|url=https://web.archive.org/web/20081204155711/http://antitrust.slated.org/www.iowaconsumercase.org/011607/3000/PX03208.pdf |date=2008-12-04 }}: "Desktop Operating Systems Mission Memo". Microsoft Confidential.Comes v. Microsoft. [http://antitrust.slated.org/www.iowaconsumercase.org/010807/PLEX_5735.pdf Plaintiff's Exhibit 5735] {{Webarchive|url=https://web.archive.org/web/20080908072344/http://antitrust.slated.org/www.iowaconsumercase.org/010807/PLEX_5735.pdf |date=2008-09-08 }}. Microsoft Confidential (October 25, 1995).

Memphis

|Windows 97

|Windows 98

|{{N/A}}

|{{cite web |url = http://www.windowsitpro.com/article/news2/memphis-windows-98-.aspx |archive-url = https://archive.today/20120919025146/http://www.windowsitpro.com/article/news2/memphis-windows-98-.aspx |url-status = dead |archive-date = 19 September 2012 |title = Memphis: Windows 98? |work = Windows IT Pro |publisher = Penton Media, Inc. |date = 6 June 1997 |access-date = 16 December 2010 |first1 = Paul |last1 = Thurrott |author-link1 = Paul Thurrott }}United States v. Microsoft Corporation. [https://www.justice.gov/sites/default/files/atr/legacy/2006/03/03/202.pdf Government Exhibit 202] {{Webarchive|url=https://web.archive.org/web/20220126212257/https://www.justice.gov/sites/default/files/atr/legacy/2006/03/03/202.pdf |date=2022-01-26 }}: "C. Wildfeuer message re 'Memphis IE 4 focus groups report'"

Millennium

|{{N/a}}

|Windows Me

|ME stands for Millennium Edition; Microsoft states that it is pronounced Me.

|{{cite web |url=http://news.cnet.com/Microsoft-names-new-consumer-OS-Windows-Me/2100-1040_3-236499.html |title=Microsoft names new consumer OS: Windows Me |work=CNET.com |first=Stephanie |last=Miles |date=February 3, 2000 |access-date=December 18, 2010 |archive-date=June 17, 2011 |archive-url=https://web.archive.org/web/20110617100519/http://news.cnet.com/Microsoft-names-new-consumer-OS-Windows-Me/2100-1040_3-236499.html |url-status=live }}

=Windows NT family=

class="sortable wikitable"

|+

Codename

!Preliminary name

!Final name

!Notes

!Ref

Razzle

|NT OS/2, Advanced Windows

|Windows NT 3.1

|Is also the name of a script that sets up the Windows NT development environment. NT OS/2 reflected the first purpose of Windows NT to serve as the next version of OS/2, before Microsoft and IBM split up. Microsoft used the NT OS/2 code to release Windows NT 3.1.

|{{cite web

|url=http://blogs.msdn.com/b/bwill/archive/2004/06/22/163020.aspx#163236

|title=How well do you know your Microsoft acronyms?

|date=June 22, 2004

|access-date=2015-07-21

|archive-date=2014-04-04

|archive-url=https://web.archive.org/web/20140404070850/http://blogs.msdn.com/b/bwill/archive/2004/06/22/163020.aspx#163236

|url-status=live

}}{{cite web|last1=Chen|first1=Raymond|title=Random internal Windows terminology: IDW, Razzle, and their forgotten partners IDS and Dazzle|url=https://devblogs.microsoft.com/oldnewthing/20181224-00/?p=100545|website=The Old New Thing|publisher=Microsoft|date=24 December 2018|access-date=4 December 2020|archive-date=15 February 2022|archive-url=https://web.archive.org/web/20220215071732/https://devblogs.microsoft.com/oldnewthing/20181224-00/?p=100545|url-status=live}}{{Cite magazine|last=Johnston|first=Stuart J.|date=18 February 1991|title='Advanced Windows' May Resolve OS/2 Dilemma|url=https://books.google.com/books?id=XVAEAAAAMBAJ&pg=PT4|magazine=InfoWorld|volume=13|issue=7|pages=5|access-date=5 July 2021|archive-date=9 July 2021|archive-url=https://web.archive.org/web/20210709190127/https://books.google.com/books?id=XVAEAAAAMBAJ&pg=PT4|url-status=live}}{{Cite magazine|last=Johnson|first=Stuart J.|date=8 July 1991|title=Microsoft drops OS/2 2.0 API, revamps 32-bit Windows plans|url=https://books.google.com/books?id=iVAEAAAAMBAJ&pg=PA103|magazine=InfoWorld|volume=13|issue=27|pages=1, 103|access-date=18 November 2021|archive-date=9 March 2022|archive-url=https://web.archive.org/web/20220309141231/https://books.google.com/books?id=iVAEAAAAMBAJ&pg=PA103|url-status=live}}

Windows Abby Hatcher Me 10 Server 2019 [23]

|Daytona

|{{N/A}}

|Windows NT 3.5

| Named after the Daytona International Speedway in Daytona Beach, Florida.

|{{cite book

| title = Microsoft Windows Internals

| edition = 4th

| last1 = Russinovich

| first1 = Mark

| author-link = Mark Russinovich

| first2 = David A.

| last2 = Solomon

| year = 2005

| publisher = Microsoft Press

| isbn = 0-7356-1917-4

| quote = The first release of Windows NT was larger and slower than expected, so the next major push was a project called Daytona, named after the speedway in Florida. The main goals for this release were to reduce the size of the system, increase the speed of the system, and, of course, to make it more reliable.

| page = xx

| url = https://archive.org/details/isbn_9780735619173

}}

Cairo

|{{N/A}}

|{{Dropped}}

|A cancelled project that would have fulfilled Bill Gates' "Information at your fingertips" vision

|{{Cite web |url=http://www.microsoft.com/presspass/press/1996/jun96/dirserpr.mspx |title=Microsoft Demonstrates Next-Generation Directory Server |website=Microsoft |access-date=2007-11-22 |archive-date=2009-01-12 |archive-url=https://web.archive.org/web/20090112225210/http://www.microsoft.com/presspass/press/1996/jun96/dirserpr.mspx |url-status=live }}

Shell Update Release

|{{N/A}}

|Windows NT 4.0

|{{N/A}}

|

Wolfpack

|{{N/A}}

|Microsoft Cluster Server

|{{N/A}}

|{{cite web

|url=http://news.cnet.com/Scalability-Day-falls-short/2100-1001_3-279928.html

|title=Scalability Day falls short

|last=Davis

|first=Jim

|work=CNet

|publisher=CBS Interactive

|date=May 20, 1997

|access-date=2009-05-23

|archive-date=2012-10-24

|archive-url=https://web.archive.org/web/20121024174534/http://news.cnet.com/Scalability-Day-falls-short/2100-1001_3-279928.html

|url-status=live

}}

Janus

|{{N/A}}

|{{Dropped}}

|Codename for the proposed 64-bit edition of Windows 2000, which was never released.

|{{Cite magazine |last=Thurrott |first=Paul |date=July 27, 1999 |title=64-bit Windows 2000 on track for mid-2000 |url=http://www.windowsitpro.com/article/news2/64-bit-windows-2000-on-track-for-mid-2000.aspx |url-status=dead |magazine=Windows IT Pro |archive-url=https://archive.today/20120529015759/http://www.windowsitpro.com/article/news2/64-bit-windows-2000-on-track-for-mid-2000.aspx |archive-date=May 29, 2012}}{{Cite web |date=August 26, 1999 |title=Windows 2000 to Launch at Comdex, 64-Bit Janus in the Wings |url=http://findarticles.com/p/articles/mi_m0CGN/is_1999_August_26/ai_55572391 |url-status=dead |archive-url=https://web.archive.org/web/20100718055750/http://findarticles.com/p/articles/mi_m0CGN/is_1999_August_26/ai_55572391/ |archive-date=July 18, 2010 |access-date=November 13, 2011 |website=Findarticles.com}}

Impala

|{{N/A}}

|Windows NT 4.0 Embedded

|{{N/A}}

|{{cite web

| url=http://msdn.microsoft.com/en-us/library/aa459171.aspx

| title=Getting to Know Windows NT Embedded and Windows XP Embedded

| first=Jon

| last=Fincher

| work=Get Embedded

| publisher=Microsoft

| date=November 20, 2001

| access-date=2009-05-23

| archive-date=2009-04-21

| archive-url=https://web.archive.org/web/20090421144800/http://msdn.microsoft.com/en-us/library/aa459171.aspx

| url-status=live

}}

Neptune

|{{N/A}}

|{{Dropped}}

|Planned to be the first consumer-oriented release of Windows NT succeeding the Windows 9x series; merged with Odyssey to form Whistler.

|{{cite web |url=http://www.digibarn.com/collections/screenshots/XP%20Neptune%20Build%205111/index.htm |title=DigiBarn Screen Shots: Windows XP Neptune Build 5111 |work=Digibarn.com |publisher=Digital Barn Computer Museum |access-date=2013-06-15 |archive-date=2020-09-18 |archive-url=https://web.archive.org/web/20200918041438/http://www.digibarn.com/collections/screenshots/XP%20Neptune%20Build%205111/index.htm |url-status=live }}

Triton

|{{N/A}}

|{{Dropped}}

|A cancelled successor to "Neptune".

|{{Cite web |title=Windows Triton - BetaArchive Wiki |url=https://www.betaarchive.com/wiki/index.php/Windows_Triton |access-date=2023-01-07 |website=www.betaarchive.com |language=en-GB}}

Asteroid

|{{N/A}}

|Windows 2000 Service Pack 1

|{{N/A}}

|{{Cite web |date=2012-05-29 |title=Windows 2000 service pack nearing release - ZDNet Asia News |url=https://archive.today/20120529015721/http://www.zdnetasia.com/news/hardware/0,39042972,13024785,00.htm |access-date=2024-09-14 |website=archive.ph}}

Odyssey

|{{N/A}}

|{{Dropped}}

|Planned to be a successor to Windows 2000; merged with Neptune to form Whistler.

|

Whistler

|Windows 2002

|Windows XP

|Named after Whistler Blackcomb, where design retreats were held.

|

Mantis

|{{N/A}}

|Windows XP Embedded

| Named after the Mantis shrimp.

|

Freestyle

|{{N/A}}

|Windows XP Media Center Edition

|{{N/A}}

|{{cite magazine |url=https://www.pcmag.com/article2/0,2817,654995,00.asp |title=Only HP Selling Media Center PCs—For Now |magazine=PC Magazine |first=Mary Jo |last=Foley |date=October 29, 2002 |access-date=September 3, 2017 |archive-date=March 9, 2022 |archive-url=https://web.archive.org/web/20220309141232/https://www.pcmag.com/archive/only-hp-selling-media-center-pcs151for-now-32982 |url-status=live }}{{cite web |url=http://news.cnet.com/Microsoft-frees-up-Freestyle/2100-1044_3-979772.html |title=Microsoft frees up Freestyle |work=CNET.com |first=Joe |last=Wilcox |date=January 8, 2003 |access-date=December 18, 2010 |archive-date=August 18, 2011 |archive-url=https://web.archive.org/web/20110818193401/http://news.cnet.com/Microsoft-frees-up-Freestyle/2100-1044_3-979772.html |url-status=live }}

Harmony

|{{N/A}}

|Windows XP Media Center Edition 2004

|{{N/A}}

|{{cite magazine |url=https://www.pcmag.com/article2/0,2817,1304918,00.asp |title=Second-Generation Media Center Edition: Worth the Wait |magazine=PC Magazine |first=Bill |last=Howard |date=September 30, 2003 |access-date=September 3, 2017 |archive-date=April 14, 2016 |archive-url=https://web.archive.org/web/20160414121608/http://www.pcmag.com/article2/0,2817,1304918,00.asp |url-status=live }}

Symphony

|{{N/A}}

|Windows XP Media Center Edition 2005

|{{N/A}}

|{{cite magazine |url=http://www.pcadvisor.co.uk/news/index.cfm?newsid=4192 |title=Microsoft aims high with Media Center update |magazine=PC Advisor |publisher=IDG News Service |first=Joris |last=Evers |date=October 12, 2004}}

Slalom

|{{N/A}}

|{{Dropped}}

|Longhorn Media Center Edition. Scrapped in favor of including Windows Media Center in Home Premium and Ultimate editions instead of a dedicated Media Center edition.

Emerald

|{{N/A}}

|Windows XP Media Center Edition 2005 Update Rollup 2

|{{N/A}}

|{{cite web |url=http://www.eweek.com/c/a/Desktops-and-Notebooks/Microsoft-Has-New-Mission-for-Media-Center/ |title=Microsoft Has New Mission for Media Center |work=eWeek |first=John G. |last=Spooner |date=October 11, 2005 |access-date=December 18, 2010 }}

Diamond

|{{N/A}}

|Windows Media Center

|Included with Windows Vista.

|

Springboard

|{{N/A}}

|{{N/A}}

|Set of enhanced security features, included in Windows XP Service Pack 2.

|{{cite magazine |url=http://www.windowsitpro.com/article/news2/windows-xp-sp2-to-be-springboard-to-longhorn.aspx |archive-url=https://wayback.archive-it.org/all/20170525045409/http://windowsitpro.com/windows-server/windows-xp-sp2-be-springboard-longhorn |url-status=dead |archive-date=May 25, 2017 |title=Windows XP SP2 to be 'Springboard' to Longhorn |magazine=Windows IT Pro |first=Paul |last=Thurrott |date=October 15, 2003 }}

Lonestar

|{{N/A}}

|Windows XP Tablet PC Edition 2005

|{{N/A}}

|{{cite web |url=http://news.cnet.com/Next-Microsoft-Tablet-PC-software-renamed/2110-1001_3-5197209.html |title=Next Microsoft Tablet PC software renamed |work=CNET.com |first=Ina |last=Fried |date=October 15, 2003 |access-date=December 18, 2010 |archive-date=October 26, 2012 |archive-url=https://web.archive.org/web/20121026110018/http://news.cnet.com/Next-Microsoft-Tablet-PC-software-renamed/2110-1001_3-5197209.html |url-status=live }}

Whistler Server

|Windows 2002 Server,
Windows .NET Server,
Windows .NET Server 2003

|Windows Server 2003

|{{N/A}}

|{{cite magazine |url=http://www.windowsitpro.com/article/windows-server-2003/microsoft-sets-windows-server-2003-release-date.aspx |archive-url=https://archive.today/20130209130255/http://www.windowsitpro.com/article/windows-server-2003/microsoft-sets-windows-server-2003-release-date.aspx |url-status=dead |archive-date=February 9, 2013 |title=Microsoft Sets Windows Server 2003 Release Date |magazine=Windows IT Pro |first=Paul |last=Thurrott |date=January 9, 2003 }}{{cite news |url=https://www.theregister.co.uk/2001/05/01/whistler_server_confirmed_as_windows/ |title=Whistler Server confirmed as Windows 2002 |work=The Register |first=John |last=Lettice |date=May 1, 2001 |access-date=August 10, 2017 |archive-date=August 10, 2017 |archive-url=https://web.archive.org/web/20170810132553/https://www.theregister.co.uk/2001/05/01/whistler_server_confirmed_as_windows/ |url-status=live }}

Bobcat

|{{N/A}}

|Windows Small Business Server 2003

|Not to be confused with Microsoft Bob.

|{{cite web |url=http://www.pcworld.com/article/102644/microsoft_shares_sharepoint_details.html |archive-url=https://archive.today/20120908081509/http://www.pcworld.com/article/102644/microsoft_shares_sharepoint_details.html |url-status=dead |archive-date=September 8, 2012 |title=Microsoft Shares Sharepoint Details |work=PC World |first=Ed |last=Scannell |date=July 15, 2002 }}

Eiger, Mönch

|{{N/A}}

|Windows Fundamentals for Legacy PCs

|Mönch included additional features for use on mobile devices.

|{{cite web |url=http://www.bit-tech.net/news/bits/2006/07/13/microsoft_releases_fundamentals/1 |title=Microsoft releases Fundamentals for older PCs |work=bit-tech |first=Glen |last=Chivers |date=July 13, 2006 |access-date=December 19, 2010 |archive-date=April 5, 2016 |archive-url=https://web.archive.org/web/20160405091301/http://www.bit-tech.net/news/bits/2006/07/13/microsoft_releases_fundamentals/1 |url-status=live }}{{cite web |url=http://www.computerworld.com/s/article/101214/Microsoft_preparing_Windows_XP_based_thin_clients |title=Microsoft preparing Windows XP-based thin clients |work=Computerworld |first=Joris |last=Evers |date=April 24, 2005 |access-date=December 19, 2010 |archive-date=June 29, 2011 |archive-url=https://web.archive.org/web/20110629201747/http://www.computerworld.com/s/article/101214/Microsoft_preparing_Windows_XP_based_thin_clients |url-status=live }}

Longhorn

|{{N/A}}

|Windows Vista

|Named after the Longhorn Bar in the Whistler Blackcomb ski resort; initially planned as a "minor release" between "Whistler" and "Blackcomb" (see below)

|{{Cite news

|url=http://www.microsoft.com/presspass/press/2005/jul05/07-22LHMA.mspx

|title=Media Alert: Microsoft Unveils Official Name for "Longhorn" and Sets Date for First Beta Targeted at Developers and IT Professionals

|work=Microsoft News Center

|publisher=Microsoft Corporation

|date=5 July 2005

|access-date=16 December 2010

|location=Redmond, Washington

|url-status=dead

|archive-url=https://web.archive.org/web/20101120150045/http://www.microsoft.com/presspass/press/2005/jul05/07-22LHMA.mspx

|archive-date=20 November 2010

}}{{Cite news

|url = http://news.cnet.com/Longhorns-new-name-Windows-Vista/2100-1016_3-5799734.html

|title = Longhorn's new name: Windows Vista

|work = CNET News

|publisher = CBS Interactive

|date = 22 July 2005

|first1 = Mike

|last1 = Ricciuti

|access-date = 16 December 2010

|archive-date = 25 October 2012

|archive-url = https://web.archive.org/web/20121025142506/http://news.cnet.com/Longhorns-new-name-Windows-Vista/2100-1016_3-5799734.html

|url-status = live

}}{{Cite news

|url = http://www.betanews.com/article/Longhorn-Gets-a-Name-Windows-Vista/1122002477

|title = Longhorn Gets a Name: Windows Vista

|work = Betanews

|date = 22 July 2005

|first1 = Ed

|last1 = Oswald

|first2 = Nate

|last2 = Mook

|access-date = 16 December 2010

|archive-date = 21 December 2010

|archive-url = https://web.archive.org/web/20101221081349/http://www.betanews.com/article/Longhorn-Gets-a-Name-Windows-Vista/1122002477

|url-status = live

}}

Blackcomb, Vienna

|{{N/a}}

|{{Dropped}}

|The purported successor to Whistler, and later, Longhorn. Named after Whistler Blackcomb, where design retreats were held. Blackcomb was later renamed to Vienna in January 2006, named after the capital of Austria. Eventually cancelled due to scope creep and replaced with Windows 7.

|{{Cite web|date=2019-07-22|title=What was the code name for Windows 7?|url=https://devblogs.microsoft.com/oldnewthing/20190722-00/?p=102724|access-date=2020-06-25|website=The Old New Thing|language=en-US|archive-date=2021-09-26|archive-url=https://web.archive.org/web/20210926093909/https://devblogs.microsoft.com/oldnewthing/20190722-00/?p=102724|url-status=live}}{{cite web |url=http://betanews.com/2006/01/19/blackcomb-renamed-to-vienna/ |title='Blackcomb' Renamed to 'Vienna' |work=Betanews |date=January 19, 2006 |access-date=April 5, 2014 |archive-date=June 24, 2015 |archive-url=https://web.archive.org/web/20150624041641/http://betanews.com/2006/01/19/blackcomb-renamed-to-vienna/ |url-status=live }}

Q, Quattro

|{{N/A}}

|Windows Home Server

|{{N/A}}

|{{cite magazine |url=http://www.windowsitpro.com/article/news2/q-it-up-windows-home-server-hits-external-beta.aspx |archive-url=https://archive.today/20130209083810/http://www.windowsitpro.com/article/news2/q-it-up-windows-home-server-hits-external-beta.aspx |url-status=dead |archive-date=February 9, 2013 |title=Q It Up: Windows Home Server Hits External Beta |magazine=Windows IT Pro |first=Paul |last=Thurrott |date=February 13, 2007 }}{{cite magazine |url=http://www.computerworld.com/s/article/9007499/CES_Gates_expands_Microsoft_s_digital_home_plan |title=CES: Gates expands Microsoft's digital home plan |journal=Computerworld |first=Elizabeth |last=Montalbano |date=January 8, 2007 |access-date=December 20, 2010 |archive-date=May 16, 2010 |archive-url=https://web.archive.org/web/20100516043457/http://www.computerworld.com/s/article/9007499/CES_Gates_expands_Microsoft_s_digital_home_plan |url-status=live }}

Vail

|{{N/A}}

|Windows Home Server 2011

|{{N/A}}

|{{cite magazine |url=https://www.pcmag.com/business/article/public-preview-of-next-version |title=Public Preview of Windows Home Server "Vail" is Here |magazine=PC Magazine |first=Samara |last=Lynn |date=April 27, 2010 |access-date=September 3, 2017 |archive-date=August 31, 2010 |archive-url=https://web.archive.org/web/20100831004208/http://www.pcmag.com/business/article/public-preview-of-next-version |url-status=dead }}

Longhorn Server

|{{N/A}}

|Windows Server 2008

|{{N/A}}

|{{cite web |url=https://abcnews.go.com/Technology/PCWorld/story?id=3675218 |title=Microsoft Begins Buildup to Windows Server 2008 Release |work=ABC News |publisher=American Broadcasting Company |first=Eric |last=Lai |date=October 1, 2007 |access-date=June 28, 2020 |archive-date=March 3, 2016 |archive-url=https://web.archive.org/web/20160303165425/http://abcnews.go.com/Technology/PCWorld/story?id=3675218 |url-status=live }}

Cougar

|{{N/A}}

|Windows Small Business Server 2008

|{{N/A}}

|{{cite magazine |url=http://www.itjungle.com/two/two022708-story03.html |title='Centro' and 'Cougar' Become Windows Server Essentials |magazine=The Windows Observer |first=Alex |last=Woodie |volume=5 |issue=8 |date=February 27, 2008 |url-status=dead |archive-url=https://web.archive.org/web/20111212044145/http://www.itjungle.com/two/two022708-story03.html |archive-date=December 12, 2011 }}

Centro

|{{N/A}}

|Windows Essential Business Server

|Named after the Spanish translation of the word "center".

|

Windows 7

|{{N/A}}

|Windows 7

|The number 7 comes from incrementing the internal version number of Windows Vista (6.0) by one. Often incorrectly referred to as Blackcomb or Vienna, while the codenames actually refer to an earlier Vista successor project that was cancelled due to scope creep.

|{{cite web |url=http://betanews.com/2007/02/15/microsoft-not-discussing-windows-7-office-14/ |title=Microsoft Not Discussing Windows 7, Office 14 |work=Betanews |date=February 15, 2007 |access-date=April 5, 2014 |archive-date=April 7, 2014 |archive-url=https://web.archive.org/web/20140407072448/http://betanews.com/2007/02/15/microsoft-not-discussing-windows-7-office-14/ |url-status=live }}{{cite web |url=http://www.upi.com/Business_News/2009/07/23/Microsoft-finalizes-Windows-7-code/UPI-87421248404771/ |title=Microsoft finalizes Windows 7 code |work=United Press International |date=July 23, 2009 |access-date=December 20, 2010 |archive-date=December 26, 2010 |archive-url=https://web.archive.org/web/20101226163239/http://www.upi.com/Business_News/2009/07/23/Microsoft-finalizes-Windows-7-code/UPI-87421248404771 |url-status=live }}

Windows Server 7

| {{N/A}}

| Windows Server 2008 R2

|{{N/A}}

|

Fiji

|Windows Vista Media Center Feature Pack 2008

|Windows Media Center TV Pack 2008

|Named after the country of Fiji.

|{{cite web |url=https://arstechnica.com/journals/microsoft.ars/2008/06/02/windows-fiji-screenshots-leak-final-name-revealed |title=Windows Fiji screenshots leak, final name revealed? |work=Ars Technica |first=Emil |last=Protalinski |date=June 2, 2008 |access-date=June 14, 2017 |archive-date=October 16, 2008 |archive-url=https://web.archive.org/web/20081016090927/http://arstechnica.com/journals/microsoft.ars/2008/06/02/windows-fiji-screenshots-leak-final-name-revealed |url-status=live }}

Cascades

|Windows Essential Business Server "v2"

|Windows Essential Business Server 2008 R2 (cancelled)

|Originally intended as the successor of Windows Essential Business Server 2008 but was cancelled "due to external factors".

|{{cite web

|url = http://blogs.technet.com/essentialbusinessserver/archive/2010/04/07/our-technical-findings-while-developing-ebs-v2.aspx

|title = Windows Essential Business Server Team Blog : Our Technical Findings While Developing EBS v2

|work = blogs.technet.com

|publisher = Windows Essential Business Server Team

|date = 7 April 2010

|access-date = 23 April 2010

|archive-date = 23 April 2010

|archive-url = https://web.archive.org/web/20100423125151/http://blogs.technet.com/essentialbusinessserver/archive/2010/04/07/our-technical-findings-while-developing-ebs-v2.aspx

|url-status = live

}}

Aurora

|{{N/A}}

|Windows Small Business Server 2011 Essentials

|{{N/A}}

|{{cite web

|url = http://www.neowin.net/news/windows-small-business-server-code-name-quotauroraquot-revealed

|title = Windows Small Business Server code name "Aurora" revealed

|work = Neowin.net

|first1 = Tom

|last1 = Warren

|date = 3 February 2010

|access-date = 16 December 2010

|archive-date = 6 February 2010

|archive-url = https://web.archive.org/web/20100206211553/http://www.neowin.net/news/windows-small-business-server-code-name-quotauroraquot-revealed

|url-status = live

}}

Quebec

|{{N/A}}

|Windows Embedded Standard 7

|Named after the province of Quebec

|{{Cite news

|url = http://www.microsoft.com/presspass/press/2009/sep09/09-01NextWindowsEmbeddedPR.mspx?rss_fdn=Press%20Releases

|title = Microsoft Delivers Windows 7-Based Windows Embedded Standard 2011 Community Technology Preview

|work = Microsoft News Center

|publisher = Microsoft Corporation

|location = Redmond, Washington

|date = 9 September 2009

|access-date = 16 December 2010

|archive-date = 7 September 2009

|archive-url = https://web.archive.org/web/20090907161402/http://www.microsoft.com/presspass/press/2009/sep09/09-01NextWindowsEmbeddedPR.mspx?rss_fdn=Press%20Releases

|url-status = live

}}

Windows 8

|{{N/A}}

|Windows 8

|Often incorrectly referred to as Jupiter, Midori and Chidori. Jupiter is the application framework used to create "immersive" apps for Windows 8, and Midori was a separate, managed code operating system. (see below)

|{{Cite web |last=Center |first=Microsoft News |date=2011-06-01 |title=Previewing "Windows 8" |url=https://news.microsoft.com/2011/06/01/previewing-windows-8/ |access-date=2024-07-07 |website=Stories |language=en-US}}{{Cite web |title=Microsoft Windows President Steven Sinofsky Introduces the New Look of Windows |url=https://allthingsd.com/20110601/up-next-at-d9-microsoft-windows-president-steven-sinofsky-live-at-d9/ |access-date=2024-07-04 |website=AllThingsD |language=en-US}}{{Cite web |last=Protalinski |first=Emil |date=2009-11-23 |title=Microsoft targets 2012 for Windows 8 |url=https://arstechnica.com/information-technology/2009/11/microsoft-roadmap-says-windows-8-in-2012/ |access-date=2024-06-29 |website=Ars Technica |language=en-us}}

Windows Server "8"

| {{N/A}}

| Windows Server 2012

|{{N/A}}

|{{cite web | url=http://www.zdnet.com/blog/microsoft/windows-server-8-officially-dubbed-windows-server-2012/12475 | title=Windows Server "8" officially dubbed Windows Server 2012 | work=ZDNet | access-date=17 April 2012 | first=Mary Jo | last=Foley | date=17 April 2012 | archive-date=19 November 2014 | archive-url=https://web.archive.org/web/20141119011441/http://www.zdnet.com/blog/microsoft/windows-server-8-officially-dubbed-windows-server-2012/12475 | url-status=dead }}

Blue

| {{N/A}}

| Windows 8.1

|{{N/A}}

|{{cite web | url=http://blogs.technet.com/b/microsoft_blog/archive/2013/03/26/looking-back-and-springing-ahead.aspx | title=Looking Back and Springing Ahead | work=The Official Microsoft Blog | publisher=Microsoft | access-date=Aug 17, 2013 | first=Frank X. | last=Shaw | date=26 March 2013 | archive-date=2 July 2013 | archive-url=https://web.archive.org/web/20130702224122/http://blogs.technet.com/b/microsoft_blog/archive/2013/03/26/looking-back-and-springing-ahead.aspx | url-status=live }}

Windows Server Blue

| {{N/A}}

| Windows Server 2012 R2

|{{N/A}}

|

Threshold

| Windows 8.2{{citation needed|date=March 2024}}, Windows 9{{citation needed|date=July 2024}}

| Windows 10
Windows 10 November Update

| Named after a location seen in Halo: Combat Evolved, near which Installation 04 orbits.

|{{cite web | url=https://www.zdnet.com/article/microsoft-codename-threshold-the-next-major-windows-wave-takes-shape/ | title=Microsoft codename 'Threshold': The next major Windows wave takes shape | first=Mary Jo | website=ZDNet | date=December 2, 2013 | last=Foley | access-date=August 14, 2015 | archive-date=December 9, 2017 | archive-url=https://web.archive.org/web/20171209220704/http://www.zdnet.com/article/microsoft-codename-threshold-the-next-major-windows-wave-takes-shape/ | url-status=live }}

Redstone

| {{N/A}}

| Windows Server 2016
Windows 10 Creators Update
Windows 10 Fall Creators Update
Windows 10 April 2018 Update
Windows Server 2019

| Named after a fictional mineral from Minecraft.

|{{cite web | url=http://www.neowin.net/news/windows-redstone-will-come-in-two-waves-june-and-october-2016 | title=Windows Redstone will come in two waves, June and October 2016 | work=Neowin blog | publisher=Neowin | access-date=Apr 8, 2015 | first=Brad | last=Sams | date=Apr 7, 2015 | archive-date=April 9, 2015 | archive-url=https://web.archive.org/web/20150409111752/http://www.neowin.net/news/windows-redstone-will-come-in-two-waves-june-and-october-2016 | url-status=live }}{{cite web | url=https://www.engadget.com/2015/04/08/windows-10-update-redstone/ | title=Next year's big Windows 10 update is codenamed 'Redstone' | work=Engadget | publisher=AOL | access-date=Apr 8, 2015 | first=Daniel | last=Cooper | date=Apr 8, 2015 | archive-date=April 11, 2015 | archive-url=https://web.archive.org/web/20150411002737/https://www.engadget.com/2015/04/08/windows-10-update-redstone/ | url-status=live }}

Santorini

| Windows 10X

| {{Dropped}}

| Named after an island in Greece. Originally supposed to be a new OS to be released mid-late 2021, was eventually cancelled. Some of its features were integrated into Windows 11 and other products.

|{{cite web |url=https://www.theverge.com/2019/10/4/20897175/windows-10x-microsoft-lite-core-os-wcos-santorini-aruba-oasis-codenames |title=Microsoft Windows 10X: what the heck is it? |last=Hollister |first=Sean |date=October 4, 2019 |website=The Verge |access-date=June 29, 2020 |archive-date=October 8, 2021 |archive-url=https://web.archive.org/web/20211008222809/https://www.theverge.com/2019/10/4/20897175/windows-10x-microsoft-lite-core-os-wcos-santorini-aruba-oasis-codenames |url-status=live }}

Sun Valley

| {{n/a}}

| Windows 11

|Named after Sun Valley, Idaho.

|{{Cite news |last=Warren |first=Tom |date=June 16, 2021 |title=Windows 11's default wallpapers are Microsoft's best yet |work=The Verge |url=https://www.theverge.com/2021/6/16/22536375/microsoft-windows-11-default-wallpaper |access-date=June 16, 2021 |archive-date=June 16, 2021 |archive-url=https://web.archive.org/web/20210616143030/https://www.theverge.com/2021/6/16/22536375/microsoft-windows-11-default-wallpaper |url-status=live }}{{Cite news |last=Aufranc |first=Jean-Luc |date=June 16, 2021 |title=Windows 11 build leaked, Windows 10 support ending in 2025 |work=CNX Software |url=https://www.cnx-software.com/2021/06/16/windows-11-build-leaked-windows-10-support-ending-in-2025/ |access-date=June 16, 2021 |archive-date=June 16, 2021 |archive-url=https://web.archive.org/web/20210616143024/https://www.cnx-software.com/2021/06/16/windows-11-build-leaked-windows-10-support-ending-in-2025/ |url-status=live }}{{Cite web|last=Parmar|first=Mayank|date=2021-06-09|title=Microsoft accidentally confirms Windows Sun Valley update|url=https://www.windowslatest.com/2021/06/09/microsoft-accidentally-confirms-windows-sun-valley-update/|access-date=2021-07-24|website=Windows Latest|language=en-US|archive-date=2021-07-24|archive-url=https://web.archive.org/web/20210724182155/https://www.windowslatest.com/2021/06/09/microsoft-accidentally-confirms-windows-sun-valley-update/|url-status=live}}{{Citation|title=Watch Panos Panay, Chief Product Officer, Microsoft sending a special message to Windows Insiders| date=June 24, 2021 |url=https://www.youtube.com/watch?v=2BdbuXUcjw0 |archive-url=https://ghostarchive.org/varchive/youtube/20211222/2BdbuXUcjw0 |archive-date=2021-12-22 |url-status=live|language=en|access-date=2021-07-24}}{{cbignore}}

Hudson Valley

|{{N/A}}

|{{unknown}}

| A possibly-planned version of Windows scheduled to be released in 2025. Named after Hudson Valley, New York

| {{Cite web |author1=Zac Bowden |date=2023-03-28 |title=Microsoft plans major platform upgrades for "Windows 12" that will modernize the OS with AI, faster updates, and better security |url=https://www.windowscentral.com/software-apps/windows-11/microsoft-windows-corepc-modern-platform-hudson-valley-2024 |access-date=2023-05-09 |website=Windows Central |language=en}}{{Cite web |title=Windows 12 will be a different, modular monster with faster updates, AI integrations, and more |url=https://www.techspot.com/news/98123-windows-12-different-modular-monster-faster-updates-ai.html |access-date=2023-05-09 |website=TechSpot |date=29 March 2023 |language=en-US}}{{Cite web |author1=Alex Wawro |date=2023-03-28 |title='Windows 12' leak just teased powerful AI upgrades — here's what we know |url=https://www.tomsguide.com/news/windows-12-leak-just-teased-powerful-ai-upgrades-heres-what-we-know |access-date=2023-05-09 |website=Tom's Guide |language=en}}

=Windows platform engineering milestones=

The following are code names used for internal development cycle iterations of the Windows core, although they are not necessarily the code names of any of the resulting releases. With some exceptions, the semester designations usually matches the Windows version number.

class="sortable wikitable"
Codename

! Semester

! Release

! Notes

! Ref

Titanium

| 19H1

| Windows 10 May 2019 Update

| Named after the chemical element in the periodic table.

|{{Cite web|last=Foley|first=Mary Jo|title=What comes after Windows 10 19H1? Vanadium|url=https://www.zdnet.com/article/what-comes-after-windows-10-19h1-vanadium/|access-date=2020-06-25|website=ZDNet|language=en|archive-date=2022-02-23|archive-url=https://web.archive.org/web/20220223081546/https://www.zdnet.com/article/what-comes-after-windows-10-19h1-vanadium/|url-status=live}}{{cite web |last1=Hassan |first1=Mehedi |title=Windows 10's Next Major Updates Will Be Codenamed Vanadium, Vibranium |url=https://www.thurrott.com/windows/windows-10/190138/windows-10s-next-major-updates-will-be-codenamed-vanadium-vibranium |website=Thurrott |date=October 31, 2018 |publisher=BWW Media Group |access-date=13 June 2021 |quote=Windows 10’s next major update is codenamed 19H1. |archive-date=13 June 2021 |archive-url=https://web.archive.org/web/20210613205930/https://www.thurrott.com/windows/windows-10/190138/windows-10s-next-major-updates-will-be-codenamed-vanadium-vibranium |url-status=live }}

Vanadium

| 19H2

| Windows 10 November 2019 Update

| Named after the chemical element in the periodic table.

|{{cite web |last1=Brown |first1=Matt |title=Next Windows 10 updates reportedly codenamed 'Vanadium' and 'Vibranium' |url=https://www.windowscentral.com/next-windows-10-updates-reportedly-codenamed-vanadium-and-vibranium |website=Windows Central |date=October 31, 2018 |access-date=13 June 2021 |archive-date=13 June 2021 |archive-url=https://web.archive.org/web/20210613205931/https://www.windowscentral.com/next-windows-10-updates-reportedly-codenamed-vanadium-and-vibranium |url-status=live }}{{cite web |last1=Hassan |first1=Mehedi |title=Windows 10's Next Major Updates Will Be Codenamed Vanadium, Vibranium |url=https://www.thurrott.com/windows/windows-10/190138/windows-10s-next-major-updates-will-be-codenamed-vanadium-vibranium |website=Thurrott |date=October 31, 2018 |publisher=BWW Media Group |access-date=13 June 2021 |quote=This means the next Windows 10 update, previously codenamed 19H2, will be called Vanadium (comes after Titanium/19H1). |archive-date=13 June 2021 |archive-url=https://web.archive.org/web/20210613205930/https://www.thurrott.com/windows/windows-10/190138/windows-10s-next-major-updates-will-be-codenamed-vanadium-vibranium |url-status=live }}

Vibranium

| 20H1

| Windows 10 May 2020 Update
Windows 10 October 2020 Update
Windows 10 May 2021 Update
Windows 10 November 2021 Update
Windows 10 2022 Update

| Named after the fictional metal Vibranium in Marvel Comics as continuing the previous line of chemical elements with Chromium could have caused confusion with the web browser project.

|{{cite web |last1=Hassan |first1=Mehedi |title=Windows 10's Next Major Updates Will Be Codenamed Vanadium, Vibranium |url=https://www.thurrott.com/windows/windows-10/190138/windows-10s-next-major-updates-will-be-codenamed-vanadium-vibranium |website=Thurrott |date=October 31, 2018 |publisher=BWW Media Group |access-date=13 June 2021 |archive-date=13 June 2021 |archive-url=https://web.archive.org/web/20210613205930/https://www.thurrott.com/windows/windows-10/190138/windows-10s-next-major-updates-will-be-codenamed-vanadium-vibranium |url-status=live }}

Manganese

| 20H2

| {{N/A}}{{efn|name=insider}}

| Named after the chemical element in the periodic table.

|{{Cite web|last=Tiwari|first=Aditya|date=2020-04-11|title=The Next Windows 10 Version Is Called "Manganese"|url=https://fossbytes.com/the-next-windows-10-version-is-called-manganese/|access-date=2020-06-25|website=Fossbytes|language=en-US|archive-date=2021-06-12|archive-url=https://web.archive.org/web/20210612203849/https://fossbytes.com/the-next-windows-10-version-is-called-manganese/|url-status=live}}

Iron

| 21H1

| Windows Server 2022{{efn|name=iron}}

| Named after the chemical element in the periodic table.

|{{Cite web|last=Shaikh|first=Rafia|date=2020-05-22|title=Windows 10 2021 Is Codenamed Iron (Fe) - Deleted Text Reveals|url=https://wccftech.com/windows-10-2021-is-codenamed-iron-fe-deleted-text-reveals/|access-date=2020-06-25|website=Wccftech|language=en-US|archive-date=2021-04-21|archive-url=https://web.archive.org/web/20210421140231/https://wccftech.com/windows-10-2021-is-codenamed-iron-fe-deleted-text-reveals/|url-status=live}}

Cobalt

| 21H2

| Windows 11

| Named after the chemical element in the periodic table.

|

Nickel

| 22H2

| Windows 11 2022 Update

|Named after the chemical element in the periodic table. Originally planned to be the 22H1 semester, although that semester was ultimately skipped and Nickel shifted to 22H2, expanded to span the entire year.

|{{Cite web|last=Nayan|date=2021-06-21|title=Development of Windows 11 Summer'21 (co_release) & Fall'21 (co_refresh) releases explained in a collated timeline|url=https://thewincentral.com/windows-11-summer21-co_release-fall21-co_refresh-developments-explained-in-a-collated-timeline/|access-date=2021-08-17|website=WinCentral|language=en-US|archive-date=2021-08-17|archive-url=https://web.archive.org/web/20210817022518/https://thewincentral.com/windows-11-summer21-co_release-fall21-co_refresh-developments-explained-in-a-collated-timeline/|url-status=live}}

Copper

| 23H1

| {{N/A}}{{efn|name=insider}}

|Named after the chemical element in the periodic table.

|{{cite web|last1=Parmar|first1=Mayank|title=Windows 11 Build 22449 is now available with new loading animation|url=https://www.windowslatest.com/2021/09/03/windows-11-build-22449-is-now-available-with-new-loading-animation|website=Windows Latest|date=2 September 2021 |access-date=January 25, 2022|archive-date=January 25, 2022|archive-url=https://web.archive.org/web/20220125131232/https://www.windowslatest.com/2021/09/03/windows-11-build-22449-is-now-available-with-new-loading-animation/|url-status=live}}

Zinc{{citation needed|date=August 2023}}

| 23H2

| Windows Server, version 23H2

|Named after the chemical element in the periodic table.

Gallium {{citation needed|date=August 2023}}

| 24H1

| {{N/A}}{{efn|name=insider}}

|Named after the chemical element in the periodic table.

Germanium {{citation needed|date=February 2024}}

| 24H2

| Windows 11 2024 Update
Windows Server 2025

|Named after the chemical element in the periodic table.

Dilithium {{citation needed|date=August 2024}}

| 25H1

| {{N/A}}{{efn|name=insider}}

|Named after the fictional material from Star Trek.

Selenium {{citation needed|date=April 2025}}

| 25H2

| {{N/A}}{{efn|name=insider}}

|Named after the chemical element in the periodic table.

{{notelist|refs=

{{efn|name=insider|Builds of these semesters were only released via the Windows Insider program.}}

{{efn|name=iron|Windows Server 2022 reports as version 21H2, although it is in fact based on the earlier Iron codebase.}}

}}

=Windows CE family=

class="sortable wikitable"
Codename

!Preliminary name

!Final name

!Ref

Pegasus, Alder{{N/A}}Windows CE 1.0{{cite web |first=Douglas |last=Boling |url=http://download.microsoft.com/documents/australia/medc2006/Windows_CE6_Architecture_Boling.ppt |title=The Windows CE New Kernel |work=Mobile & Embedded DevCon 2006 |publisher=Microsoft |year=2006 |access-date=2006-08-08 |archive-date=2020-07-25 |archive-url=https://web.archive.org/web/20200725070150/https://download.microsoft.com/documents/australia/medc2006/Windows_CE6_Architecture_Boling.ppt |url-status=live }}
Birch{{N/A}}Windows CE 2.0
Cedar{{N/A}}Windows CE 3.0
TaliskerWindows CE .NETWindows CE 4.0
Jameson{{N/A}}Windows CE 4.1
McKendric{{N/A}}Windows CE 4.2
Macallan{{N/A}}Windows CE 5.0
YamazakiWindows CE 6.0Windows Embedded CE 6.0{{cite web|last=Hall|first=Mike|title=CE 6.0 - why the codename "Yamazaki" ?|url=http://blogs.msdn.com/b/mikehall/archive/2006/09/19/763146.aspx|work=Windows Embedded Blog|publisher=Microsoft|access-date=17 February 2014|date=20 September 2006|archive-date=18 September 2011|archive-url=https://web.archive.org/web/20110918183611/http://blogs.msdn.com/b/mikehall/archive/2006/09/19/763146.aspx|url-status=live}}
ChelanWindows Embedded CE 7Windows Embedded Compact 7{{cite web|last=Foley|first=Mary Jo|title=Microsoft 'Chelan': A new Windows Embedded platform takes shape|url=http://www.zdnet.com/blog/microsoft/microsoft-chelan-a-new-windows-embedded-platform-takes-shape/2781|work=ZDNet|publisher=CBS Interactive|access-date=17 February 2014|date=14 May 2009|archive-date=22 February 2014|archive-url=https://web.archive.org/web/20140222180414/http://www.zdnet.com/blog/microsoft/microsoft-chelan-a-new-windows-embedded-platform-takes-shape/2781|url-status=dead}}

=Windows Mobile=

class="sortable wikitable"
Codename

!Preliminary name

!Final name

!Ref

Rapier

|{{N/A}}

|Pocket PC 2000

|{{cite web |title=Windows CE / Windows Mobile Versions |url=http://www.pocketpcfaq.com/wce/versions.htm |website=pocketpcfaq.com |publisher=Self-published |first=Chris |last=De Herrera |access-date=2018-01-18 |archive-date=2019-09-04 |archive-url=https://web.archive.org/web/20190904061634/http://www.pocketpcfaq.com/wce/versions.htm |url-status=live }}

Merlin

|{{N/A}}

|Pocket PC 2002

|

Ozone

|{{N/A}}

|Windows Mobile 2003

|

Magneto

|{{N/A}}

|Windows Mobile 5

|

Crossbow

|{{N/A}}

|Windows Mobile 6

|

6 on 6

|{{N/A}}

|Windows Mobile 6.1.4

|

Titanium

|{{N/A}}

|Windows Mobile 6.5

|

Maldives

|Windows Mobile 7

|Windows Phone 7

|

= Windows Phone =

class="sortable wikitable"
Codename

!Preliminary name

!Final name

!Ref

Photon

|Windows Mobile 7 Series

|Windows Phone 7

|{{cite web|last1=Rojas|first1=Peter|title=Photon, the next version of Windows Mobile|url=https://www.engadget.com/2005/12/08/photon-the-next-version-of-windows-mobile/|website=Engadget|publisher=Aol|date=8 December 2005|access-date=3 September 2017|archive-date=28 January 2018|archive-url=https://web.archive.org/web/20180128190559/https://www.engadget.com/2005/12/08/photon-the-next-version-of-windows-mobile/|url-status=live}}{{cite web|title=Mobile World Congress 2010 – day one overview|url=http://www.techcentral.co.za/mobile-world-congress-2010-day-one-overview/12826/|website=TechCentral|publisher=NewsCentral Media|date=15 February 2010|access-date=26 April 2015|archive-date=5 December 2014|archive-url=https://web.archive.org/web/20141205065622/http://www.techcentral.co.za/mobile-world-congress-2010-day-one-overview/12826/|url-status=live}}

Mango

| {{N/A}}

|Windows Phone 7.5

|{{cite web |url=https://www.theverge.com/2011/10/24/2509332/windows-phone-75-mango-review |title=Windows Phone 7.5 'Mango' release details and updated review |work=The Verge |publisher=Vox Media |date=September 27, 2011 |access-date=August 22, 2013 |first=Chris |last=Ziegler |archive-date=January 29, 2018 |archive-url=https://web.archive.org/web/20180129004335/https://www.theverge.com/2011/10/24/2509332/windows-phone-75-mango-review |url-status=live }}

Apollo

| {{N/A}}

|Windows Phone 8

|

Blue

| {{N/A}}

|Windows Phone 8.1

|

Threshold

| {{N/A}}

|Windows 10 Mobile

|

=Others=

class="sortable wikitable"
Codename

!Preliminary name

!Final name

!Notes

!Ref

Singularity

|{{N/A}}

|{{N/A}}

|Experimental operating system based on the Microsoft .NET platform, using software-based type safety as a replacement for hardware-based memory protection. Evolved into Midori.

|{{Cite web |url=http://research.microsoft.com/os/singularity/ |title=Microsoft Research Singularity Project |access-date=2005-12-01 |archive-date=2005-11-05 |archive-url=https://web.archive.org/web/20051105024937/http://research.microsoft.com/os/singularity/ |url-status=live }}

Midori

| {{N/A}}

| {{N/A}}

| A managed code operating system being developed by Microsoft with joint effort of Microsoft Research.

| {{cite web|last1=Foley|first1=Mary Jo|title=Goodbye, XP. Hello, Midori|url=https://www.zdnet.com/article/goodbye-xp-hello-midori/|website=ZDNet|publisher=CBS Interactive|date=30 June 2008|access-date=27 January 2015|archive-date=14 June 2021|archive-url=https://web.archive.org/web/20210614194126/https://www.zdnet.com/article/goodbye-xp-hello-midori/|url-status=live}}{{cite web|last1=Oiaga|first1=Marius|title=Life After Windows - Microsoft Midori Operating System|url=http://archive.news.softpedia.com/news/Life-After-Windows-Microsoft-Midori-Operating-System-88910.shtml|website=Softpedia|publisher=SoftNews|date=30 June 2008|access-date=27 January 2015|archive-url=https://web.archive.org/web/20141203092354/http://archive.news.softpedia.com/news/Life-After-Windows-Microsoft-Midori-Operating-System-88910.shtml|archive-date=3 December 2014|url-status=dead}}

Red Dog

|Windows Cloud

|Azure

|Microsoft cloud services platform

|

Tahiti

|{{N/A}}

|{{N/A}}

|Supposedly a family of multi-core technologies including an operating system, applications and development tools designed to make better use of today's multi-core CPUs. Midori may be a part of this suite of new Microsoft technologies.

|{{Cite news

|url = https://www.zdnet.com/article/tahiti-microsofts-ultimate-many-core-destination/

|title = Tahiti: Microsoft's ultimate many-core destination

|work = ZDNet

|publisher = CBS Interactive

|date = 15 July 2008

|access-date = 22 December 2010

|first = Mary Jo

|last = Foley

|archive-date = 9 March 2022

|archive-url = https://web.archive.org/web/20220309141233/https://www.zdnet.com/article/tahiti-microsofts-ultimate-many-core-destination/

|url-status = live

}}

Tokyo

|Azure AD Cloud App Discovery

|Cloud App Discovery

|Azure-based data-directory service designed to help connect the right people to the right data.

|{{cite web

|url=https://www.thurrott.com/podcasts/4202/windows-weekly-418-the-stephen-elop-signature-edition

|first=Mary Jo

|last=Foley

|title=Codename pick of the week: Project Tokyo

|date=18 June 2015

|publisher=TWiT

|access-date=2016-11-16

|archive-date=2018-08-28

|archive-url=https://web.archive.org/web/20180828170117/https://www.thurrott.com/podcasts/4202/windows-weekly-418-the-stephen-elop-signature-edition

|url-status=live

}}

Zurich

|{{N/A}}

|.NET Services

|Part of Microsoft Azure, Microsoft's cloud computing platform, that focuses on extended software development based on .NET Framework to the cloud.

|{{cite web|last1=Foley|first1=Mary Jo|title=How many people does it take to fill Bill Gates' shoes?|url=https://www.zdnet.com/article/how-many-people-does-it-take-to-fill-bill-gates-shoes/|website=ZDNet|publisher=CBS Interactive|date=23 June 2008|access-date=27 January 2015|archive-date=20 January 2021|archive-url=https://web.archive.org/web/20210120051722/https://www.zdnet.com/article/how-many-people-does-it-take-to-fill-bill-gates-shoes/|url-status=live}}{{cite web|last1=Foley|first1=Mary Jo|title=Ozzie foreshadows 'Zurich,' Microsoft's elastic cloud|url=https://www.zdnet.com/finance/ozzie-foreshadows-zurich-microsofts-elastic-cloud/|website=ZDNet|publisher=CBS Interactive|date=24 July 2008|access-date=27 January 2015|archive-date=6 March 2021|archive-url=https://web.archive.org/web/20210306152156/https://www.zdnet.com/article/ozzie-foreshadows-zurich-microsofts-elastic-cloud/|url-status=live}}{{cite web|last1=Foley|first1=Mary Jo|title=Microsoft's Azure cloud platform: A guide for the perplexed|url=https://www.zdnet.com/article/microsofts-azure-cloud-platform-a-guide-for-the-perplexed/|website=ZDNet|publisher=CBS Interactive|date=27 October 2008|access-date=27 January 2015|archive-date=25 February 2021|archive-url=https://web.archive.org/web/20210225085919/https://www.zdnet.com/article/microsofts-azure-cloud-platform-a-guide-for-the-perplexed/|url-status=live}}

OS components

class="sortable wikitable"
Codename

!Preliminary name

!Final name

!Notes

!Ref

Anaheim

|{{n/a}}

|Microsoft Edge

|A rewrite of Microsoft's web browser, based on the Chromium project.

|{{Cite web|url=https://www.bleepingcomputer.com/news/microsoft/microsoft-replacing-edge-with-new-chromium-based-browser/|title=Microsoft Replacing Edge With New Chromium-based Browser|website=BleepingComputer|language=en-us|access-date=2019-09-02|archive-date=2018-12-07|archive-url=https://web.archive.org/web/20181207025558/https://www.bleepingcomputer.com/news/microsoft/microsoft-replacing-edge-with-new-chromium-based-browser/|url-status=live}}

Barcelona

|{{N/A}}

|Windows Defender Application Guard

|A security feature for running the Microsoft Edge web browser inside a virtual machine, thus isolating it from the rest of the system in the event that it was hacked.

|{{cite web|last=Foley|first=Mary Jo|url=https://www.zdnet.com/article/microsoft-windows-10-now-on-400-million-devices/|title=Microsoft: Windows 10 now on 400 million devices|date=26 September 2016|website=ZDNet|publisher=CBS Interactive|access-date=27 September 2016|archive-date=18 April 2021|archive-url=https://web.archive.org/web/20210418065937/https://www.zdnet.com/article/microsoft-windows-10-now-on-400-million-devices/|url-status=live}}

Beihai

|

|Paint 3D

|3D version of Microsoft Paint

|{{Cite web|url=https://www.zdnet.com/article/microsoft-reveals-more-about-whats-coming-in-windows-10-creators-update/|title=Microsoft reveals more about what's coming in Windows 10 Creators Update|last=Foley|first=Mary Jo|author-link=Mary Jo Foley|date=26 October 2016|website=ZDNet|publisher=CBS Interactive|access-date=28 October 2016|archive-date=26 October 2016|archive-url=https://web.archive.org/web/20161026233502/http://www.zdnet.com/article/microsoft-reveals-more-about-whats-coming-in-windows-10-creators-update/|url-status=live}}

Code Integrity Rooting

|Secure Startup

|BitLocker

|A security feature that checks and validates the integrity of Windows boot and system components.

|{{cite web |title=Secure Startup: Full Volume Encryption: Executive Overview |url=http://download.microsoft.com/download/5/D/6/5D6EAF2B-7DDF-476B-93DC-7CF0072878E6/secure-start_exec.doc |publisher=Microsoft |date=21 April 2005 |access-date=30 January 2015 |archive-date=4 March 2016 |archive-url=https://web.archive.org/web/20160304083404/http://download.microsoft.com/download/5/D/6/5D6EAF2B-7DDF-476B-93DC-7CF0072878E6/secure-start_exec.doc |url-status=live }}{{cite web|last1=Biddle |first1=Peter |title=Next-Generation Secure Computing Base |url=http://download.microsoft.com/download/1/8/f/18f8cee2-0b64-41f2-893d-a6f2295b40c8/TW04008_WINHEC2004.ppt |publisher=Microsoft |date=2004 |url-status=dead |archive-url=https://web.archive.org/web/20060827073150/http://download.microsoft.com/download/1/8/f/18f8cee2-0b64-41f2-893d-a6f2295b40c8/TW04008_WINHEC2004.ppt |archive-date=August 27, 2006 }}

Continuum

|Tablet Mode

|Continuum

|A Windows 10 feature that enables hybrid devices to switch between tablet mode and desktop mode. An immediately manifest effect is the Start screen getting maximized in tablet mode.

|{{cite web|last1=Trent|first1=Rod|title=Windows 10 Build 9926: Continuum Makes an Appearance as Tablet Mode|url=http://winsupersite.com/windows-10/windows-10-build-9926-continuum-makes-appearance-tablet-mode|website=SuperSite for Windows|date=26 January 2015|access-date=2015-01-27|archive-url=https://web.archive.org/web/20150128225713/http://winsupersite.com/windows-10/windows-10-build-9926-continuum-makes-appearance-tablet-mode|archive-date=2015-01-28|url-status=dead}}

Cornerstone

|Secure Startup

|BitLocker

|Full disk encryption feature introduced in Windows Vista and present in subsequent versions that utilizes the Trusted Platform Module to perform integrity checking prior to operating system startup.

|{{cite web|last1=Thurrott|first1=Paul|title=Pre-PDC Exclusive: Windows Vista Product Editions|url=http://windowsitpro.com/article/windows-server-20082/pre-pdc-exclusive-windows-vista-product-editions-revealed-47665|website=SuperSite for Windows|date=9 September 2005|access-date=30 January 2015|archive-url=https://web.archive.org/web/20150402154123/http://windowsitpro.com/article/windows-server-20082/pre-pdc-exclusive-windows-vista-product-editions-revealed-47665|archive-date=2 April 2015|url-status=dead}}

Assistant

|{{N/A}}

|Cortana

|An intelligent personal assistant included with Windows 10, named after an artificial intelligence character in Halo

|{{cite web|title='Cortana': More on Microsoft's next-generation personal assistant|url=https://www.zdnet.com/article/cortana-more-on-microsofts-next-generation-personal-assistant/|work=ZDNet News|publisher=CBS Interactive|access-date=15 January 2015|date=12 Sep 2013|first=Mary Jo|last=Foley|archive-date=29 December 2021|archive-url=https://web.archive.org/web/20211229145426/https://www.zdnet.com/article/cortana-more-on-microsofts-next-generation-personal-assistant/|url-status=live}}

Cougar

|{{N/A}}

|VMM32

|32-bit kernel

|

Darwin

|Microsoft Installer

|Windows Installer

|A Windows service and application programming interface for installing software on computers running Microsoft Windows operating systems

|{{cite web | url=http://blogs.msdn.com/chrsmith/archive/2005/07/01/Darwin_the_FX_the_Bootstrapper_and_you.aspx | title=Windows Installer, The .NET Framework, The Bootstrapper, and You | date=July 1, 2005 | access-date=July 23, 2006 | first=Chris | last=Smith | work=Chris Smith's completely unique view | publisher=Microsoft | archive-date=December 10, 2008 | archive-url=https://web.archive.org/web/20081210063652/http://blogs.msdn.com/chrsmith/archive/2005/07/01/Darwin_the_FX_the_Bootstrapper_and_you.aspx | url-status=live }}

Frosting

|{{N/A}}

|Microsoft Plus! for Windows 95

|

|{{cite news |url=https://www.washingtonpost.com/wp-srv/business/longterm/microsoft/documents/gates0827p2.htm |title=Deposition of Bill Gates |date=August 27, 1998 |access-date=July 23, 2006 |newspaper=The Washington Post |archive-date=April 10, 2016 |archive-url=https://web.archive.org/web/20160410054821/http://www.washingtonpost.com/wp-srv/business/longterm/microsoft/documents/gates0827p2.htm |url-status=live }}

Hydra

|{{N/A}}

|Terminal Services, Windows Terminal Server

|Terminal Server adds "multiheading" support to Windows (the ability to run multiple instances of the graphics subsystem), and the hydra is a mythological monster with multiple heads.

|{{cite web |url=http://www.windowsnetworking.com/articles_tutorials/Overview-Terminal-Services.html |title=Overview of Terminal Services |first=Mitch |last=Tullcoh |work=WindowsNetworking.com |publisher=TechGenix |date=February 24, 2005 |access-date=May 23, 2009 |archive-date=October 31, 2012 |archive-url=https://web.archive.org/web/20121031013157/http://windowsnetworking.com/articles_tutorials/Overview-Terminal-Services.html |url-status=live }}

Jaguar

|{{N/A}}

|{{N/A}}

|16-bit DOS kernel for Windows 95 based on MS-DOS 5.0, used by Windows 95 boot loader and compatibility layer.

|{{cite web|last1=Chen|first1=Raymond|title=The code names for various subprojects within Windows 95|url=https://blogs.msdn.microsoft.com/oldnewthing/20140520-00/?p=953|website=The Old New Thing|publisher=Microsoft|date=20 May 2014|access-date=23 January 2016|archive-date=4 July 2021|archive-url=https://web.archive.org/web/20210704050138/https://devblogs.microsoft.com/oldnewthing/|url-status=live}}{{cite web|last1=Chen|first1=Raymond|title=What was the starting point for the Panther Win32 kernel?|url=https://blogs.msdn.microsoft.com/oldnewthing/20150421-00/?p=44193|website=The Old New Thing|publisher=Microsoft|date=21 April 2015|access-date=23 January 2016|archive-date=10 January 2019|archive-url=https://web.archive.org/web/20190110065948/https://blogs.msdn.microsoft.com/oldnewthing/20150421-00/?p=44193|url-status=live}}

Jupiter

|{{N/A}}

|WinRT XAML

|A new application framework on Windows 8 used to create cross-platform "immersive" apps.

|{{cite web |title=More on Microsoft 'Jupiter' and what it means for Windows 8 |url=http://www.zdnet.com/blog/microsoft/more-on-microsoft-jupiter-and-what-it-means-for-windows-8/8373 |work=ZDNet |publisher=CBS Interactive |access-date=March 30, 2013 |archive-date=November 29, 2014 |archive-url=https://web.archive.org/web/20141129031310/http://www.zdnet.com/blog/microsoft/more-on-microsoft-jupiter-and-what-it-means-for-windows-8/8373 |url-status=dead }}

Monad

|MSH, Microsoft Shell

|Windows PowerShell

|"Monads", according to philosopher Gottfried Leibniz's monadology, are the ultimate elements of the universe, individual percipient beings, and MSH is similarly composed of small, individual modules the user puts in interrelation.

{{cite web |url=http://blogs.msdn.com/b/nickmac/archive/2005/11/03/msh-microsoft-command-shell-codename-monad-beta-2-refresh.aspx |title=msh: Microsoft Command Shell (Codename: Monad) Beta 2 Refresh |work=Nick MacKechnie's Blog |publisher=Microsoft |date=October 27, 2008 |first=Nick |last=MacKechnie |access-date=August 22, 2013 |archive-date=April 7, 2014 |archive-url=https://web.archive.org/web/20140407233930/http://blogs.msdn.com/b/nickmac/archive/2005/11/03/msh-microsoft-command-shell-codename-monad-beta-2-refresh.aspx |url-status=live }}
Morro

|{{N/A}}

|Microsoft Security Essentials

|MSE was codenamed after the Morro de São Paulo beach in Brazil.

|Bott, Ed. [http://blogs.zdnet.com/Bott/?p=1067 "How good is Microsoft's free antivirus software?"] {{Webarchive|url=https://web.archive.org/web/20120531114317/http://www.zdnet.com/blog/bott/how-good-is-microsofts-free-antivirus-software/1067 |date=2012-05-31 }}, ZDnet, June 18, 2009, accessed July 6, 2009.Schofield, Jack. [https://www.theguardian.com/technology/blog/2009/jun/11/microsoft-morro-antivirus "Waiting for Morro: Microsoft's free anti-virus software"] {{Webarchive|url=https://web.archive.org/web/20170406045944/https://www.theguardian.com/technology/blog/2009/jun/11/microsoft-morro-antivirus |date=2017-04-06 }}, guardian.co.uk, June 11, 2009, accessed July 6, 2009.

Neon

|{{N/A}}

|Fluent Design

|Microsoft Fluent Design System is a revamp of the Windows UI based around five key components: Light, Depth, Motion, Material, and Scale.

|Microsoft [https://fluent.microsoft.com "Fluent Design System"] {{Webarchive|url=https://web.archive.org/web/20180301050334/https://fluent.microsoft.com/ |date=2018-03-01 }}, Microsoft, May 11, 2017, accessed May 12, 2017.

O'Hare

|{{N/A}}

|Internet Explorer 1

|Internet Explorer 1, first shipped in Microsoft Plus! for Windows 95: The codename O'Hare ties into the Chicago codename for Windows 95: O'Hare International Airport is the largest airport in the city of Chicago, Illinois — in Microsoft's words, "a point of departure to distant places from Chicago".

|{{cite web |url=https://technet.microsoft.com/en-us/library/dd316500.aspx |title=Internet Standards and Operating Systems - Why Integration Makes Sense |work=TechNet Library |publisher=Microsoft |date=March 3, 1998 |access-date=July 31, 2009 |archive-date=August 12, 2017 |archive-url=https://web.archive.org/web/20170812133637/https://technet.microsoft.com/en-us/library/dd316500.aspx |url-status=live }}

Panther

|{{N/A}}

|{{N/A}}

|Cancelled. Panther was a 32-bit kernel based on Windows NT kernel.

|

Pinball

|{{N/A}}

|High Performance File System (HPFS)

|"Pinball" is the nickname (as opposed to a codename) for HPFS because HPFS driver in Windows NT 3.5 is called PINBALL.SYS.

|{{cite web|title=Windows NT File System Files|url=http://support.microsoft.com/kb/100012/en-us|website=Support|publisher=Microsoft|access-date=27 January 2015}}{{cite book|last1=Boswell|first1=William|title=Inside Windows 2000 Server|date=2000|publisher=New Riders|location=Indianapolis, Ind.|isbn=9781562059293|page=[https://archive.org/details/insidewindows20000bosw/page/794 794]|chapter=Chapter 13: Managing File Systems|chapter-url=https://archive.org/details/insidewindows20000bosw/page/794}}{{cite web|last1=Daily|first1=Sean|title=Using HPFS with NT 4.0|url=http://windowsitpro.com/windows-client/using-hpfs-nt-40|website=Windows IT Pro|date=30 September 1996|access-date=27 January 2015|archive-url=https://web.archive.org/web/20140806094021/http://windowsitpro.com/windows-client/using-hpfs-nt-40|archive-date=6 August 2014|url-status=dead}}

Piton

|{{N/A}}

|ReadyDrive

|Feature introduced in Windows Vista to support hybrid drives

|{{cite web |url=http://download.microsoft.com/download/1/8/f/18f8cee2-0b64-41f2-893d-a6f2295b40c8/TW04026_WINHEC2004.ppt |title=Improved Disk Drive Power Consumption Using Solid-State Non-Volatile Memory |last=Nicholson |first=Clark |date=2004 |publisher=Microsoft |format=PPT |archive-url=https://web.archive.org/web/20060509115143/http://download.microsoft.com/download/1/8/f/18f8cee2-0b64-41f2-893d-a6f2295b40c8/TW04026_WINHEC2004.ppt |archive-date=May 9, 2006 |access-date=December 6, 2015}}{{cite web |url=http://blogs.msdn.com/b/ianm/archive/2006/04/06/569715.aspx |title=SuperFetch, ReadyBoost and ReadyDrive: some new feature names for you |last=Moulster |first=Ian |date=April 6, 2006 |publisher=Microsoft |work=MSDN Blogs |access-date=September 17, 2015 |archive-date=November 24, 2015 |archive-url=https://web.archive.org/web/20151124043801/http://blogs.msdn.com/b/ianm/archive/2006/04/06/569715.aspx |url-status=live }}

Protogon

|{{N/A}}

|ReFS

|The successor of NTFS

|{{cite web|url=http://www.zdnet.com/blog/microsoft/microsoft-goes-public-with-plans-for-its-new-windows-8-file-system/11666|title=Microsoft goes public with plans for its new Windows 8 file system|last=Foley|first=Mary Jo|date=2012-01-16|work=ZDNet|publisher=CBS Interactive|access-date=2017-11-29|archive-date=2013-05-21|archive-url=https://web.archive.org/web/20130521214738/http://www.zdnet.com/blog/microsoft/microsoft-goes-public-with-plans-for-its-new-windows-8-file-system/11666|url-status=dead}}

Rincon

|{{N/A}}

|Internet Explorer 7

|Rincon is a surfing beach in Puerto Rico

|{{cite web|last1=Lyndersay|first1=Sean|title=On names and codenames…|url=https://blogs.msdn.microsoft.com/justsean/2007/02/09/on-names-and-codenames/|website=Bit-cycling|publisher=Microsoft|date=9 February 2007|access-date=27 April 2016|archive-date=14 January 2019|archive-url=https://web.archive.org/web/20190114045956/https://blogs.msdn.microsoft.com/justsean/2007/02/09/on-names-and-codenames/|url-status=live}}

Spartan

|{{N/A}}

|Microsoft Edge [Legacy]

|Web browser first introduced in Windows 10, which uses EdgeHTML rendering engine. Refers to Spartans in Halo.

|{{cite web|last1=Warren|first1=Tom|title=This is Microsoft Edge, the replacement for Internet Explorer|url=https://www.theverge.com/2015/4/29/8511169/microsoft-edge-official-name-internet-explorer-upgrade|website=The Verge|publisher=Vox Media|date=29 April 2015|access-date=3 September 2017|archive-date=29 April 2015|archive-url=https://web.archive.org/web/20150429211200/http://www.theverge.com/2015/4/29/8511169/microsoft-edge-official-name-internet-explorer-upgrade|url-status=live}}

Stimpy

|{{N/A}}

|Windows Shell

|Applies to Windows 95 only.

|

Viridian

|{{N/A}}

|Hyper-V

|Virtualization update for Windows Server 2008

|{{cite web|url=http://www.zdnet.com/blog/microsoft/microsoft-to-ship-windows-server-2008-over-time-in-eight-flavors/935|title=Microsoft to ship Windows Server 2008, over time, in eight flavors|website=ZDNet|access-date=2007-11-13|archive-date=2010-09-24|archive-url=https://web.archive.org/web/20100924135715/http://www.zdnet.com/blog/microsoft/microsoft-to-ship-windows-server-2008-over-time-in-eight-flavors/935|url-status=dead}}

WinFS

|{{N/A}}

|{{n/a}}

|A cancelled data storage and management system project based on relational databases, first demonstrated in 2003 as an advanced storage subsystem for the Microsoft Windows, designed for persistence and management of structured, semi-structured as well as unstructured data.

|{{cite web|url=http://news.zdnet.co.uk/software/0,1000000121,2131385,00.htm |title=Leaked Windows hints at changes to come |work=ZDNet |publisher=CBS Interactive |archive-url=https://web.archive.org/web/20070930210357/http://news.zdnet.co.uk/software/0%2C1000000121%2C2131385%2C00.htm |archive-date=September 30, 2007 |date=September 30, 2007 |url-status=dead }}{{cite web |url = https://www.theguardian.com/technology/2006/jun/29/insideit.guardianweeklytechnologysection |title = Why WinFS had to vanish |first = Jack |last = Schofield |work = The Guardian |publisher = Guardian News and Media |date = June 29, 2006 |access-date = December 9, 2010 |archive-date = July 13, 2021 |archive-url = https://web.archive.org/web/20210713004634/https://www.theguardian.com/technology/2006/jun/29/insideit.guardianweeklytechnologysection |url-status = live }}

Cascadia

|{{N/A}}

|Windows Terminal

|A terminal emulator for Windows 10.

|{{cite web|author=Kayla|title=Cascadia Code|url=https://devblogs.microsoft.com/commandline/cascadia-code|website=Windows Command Line|access-date=9 March 2022|date=18 September 2019|archive-date=9 March 2022|archive-url=https://web.archive.org/web/20220309142107/https://devblogs.microsoft.com/commandline/cascadia-code/|url-status=live}}

[[Microsoft Servers]]

=SQL Server family=

{{More citations needed section|date = January 2016}}

class="sortable wikitable"
Codename

!Final name

!Notes

!Ref

SQLNT

|SQL Server 4.21

|

|{{Citation needed|date=June 2024}}

SQL95

|SQL Server 6.0

|

|{{Citation needed|date=June 2024}}

Hydra

|SQL Server 6.5

|

|{{Citation needed|date=June 2024}}

Sphinx

|SQL Server 7.0

|

|{{cite web

|url = http://www.winsupersite.com/reviews/sql7_workshop.asp

|title = SQL Server 7 "Sphinx" Technical Workshop Reviewed

|last = Thurrott

|first = Paul

|author-link = Paul Thurrott

|date = February 27, 1998

|access-date = 2009-05-23

|work = SuperSite for Windows

|publisher = Penton

|url-status = dead

|archive-url = https://web.archive.org/web/20090829074619/http://www.winsupersite.com/reviews/sql7_workshop.asp

|archive-date = August 29, 2009

}}

Plato

|OLAP Services 7.0

|"OLAP Services" was later renamed Microsoft Analysis Services

|{{cite web|title=CNet: Microsoft adds to Plato feature list|url=http://news.cnet.com/Microsoft-adds-to-Plato-feature-list/2100-1001_3-215561.html|access-date=2011-07-07|archive-date=2014-10-20|archive-url=https://web.archive.org/web/20141020192008/http://news.cnet.com/Microsoft-adds-to-Plato-feature-list/2100-1001_3-215561.html|url-status=live}}

Shiloh

|SQL Server 2000

|Version 8

|{{Citation needed|date=June 2024}}

Rosetta

|Reporting Services in SQL Server 2000

|

|{{Citation needed|date=June 2024}}

Yukon

|SQL Server 2005

|Version 9

|{{cite web

|url=https://docs.microsoft.com/previous-versions/sql/sql-server-2005

|title=Books Online for SQL Server 2005

|access-date=2010-11-11

|work=MSDN

|date=3 December 2008

|publisher=Microsoft

|archive-date=2022-03-09

|archive-url=https://web.archive.org/web/20220309141234/https://docs.microsoft.com/en-us/previous-versions/sql/sql-server-2005/ms130214(v=sql.90)

|url-status=live

}}

{{cite web

|title=Why Browser is installed under 90\shared directory rathar than 100\Shared?

|url=https://blogs.msdn.com/b/sql_protocols/archive/2008/04/07/why-browser-is-installed-under-90-shared-directory-rathar-than-100-shared.aspx

|work=Microsoft SQL Server Protocols Team Blog

|publisher=Microsoft

|date=April 7, 2008

|access-date=2011-02-01

|archive-date=2015-09-24

|archive-url=https://web.archive.org/web/20150924164631/http://blogs.msdn.com/b/sql_protocols/archive/2008/04/07/why-browser-is-installed-under-90-shared-directory-rathar-than-100-shared.aspx

|url-status=live

}}

Picasso

|Analysis Services in SQL Server 2005

|

|{{Citation needed|date=June 2024}}

Katmai

|SQL Server 2008

|Version 10

|{{cite web

|url=https://docs.microsoft.com/previous-versions/sql/sql-server-2008

|title=Books Online for SQL Server 2008

|access-date=2010-11-11

|work=MSDN

|date=October 2010

|publisher=Microsoft

|archive-date=2022-03-09

|archive-url=https://web.archive.org/web/20220309141234/https://docs.microsoft.com/en-us/previous-versions/sql/sql-server-2008/ms130214(v=sql.100)

|url-status=live

}}

{{cite web

|title=ChannelWeb: Next SQL Server stop: Katmai

|url=http://www.crn.com/storage/170702999

|access-date=2005-11-05

|url-status=dead

|archive-url=https://web.archive.org/web/20070322212538/http://www.crn.com/storage/170702999

|archive-date=2007-03-22

}}

Kilimanjaro

|SQL Server 2008 R2

|Version 10.5

|{{cite web

|url=https://docs.microsoft.com/previous-versions/sql/sql-server-2008-r2

|title=Books Online for SQL Server 2008 R2

|access-date=2010-11-11

|work=MSDN

|publisher=Microsoft

|archive-date=2022-03-09

|archive-url=https://web.archive.org/web/20220309141244/https://docs.microsoft.com/en-us/previous-versions/sql/sql-server-2008-r2/ms130214(v=sql.105)

|url-status=live

}}

Blue

|SQL Server 2008 Report Designer 2.0

|This is the standalone release of the tool for Reporting Services. It must not be confused with Report Builder 2.0.

|{{cite web

|title=Silvaware: What's up with the new SSRS 2008 Report Designer

|url=http://silvaware.blogspot.com/2008/04/whats-up-with-new-ssrs-2008-report.html

|access-date=2008-09-13

|archive-date=2010-05-25

|archive-url=https://web.archive.org/web/20100525024426/http://silvaware.blogspot.com/2008/04/whats-up-with-new-ssrs-2008-report.html

|url-status=live

}}

{{cite web

|title=Designing and Implementing Reports Using Report Designer (Reporting Services)

|url=https://technet.microsoft.com/en-us/library/ms159253(v=sql.100).aspx

|website=SQL Server 2008 Books Online

| date=October 2010 |publisher=Microsoft

|access-date=23 August 2015

|archive-date=14 April 2016

|archive-url=https://web.archive.org/web/20160414035445/https://technet.microsoft.com/en-us/library/ms159253(v=sql.100).aspx

|url-status=live

}}

{{cite web

|title=Designing and Implementing Reports Using Report Builder 2.0

|url=https://technet.microsoft.com/en-us/library/dd220530(v=sql.100).aspx

|website=SQL Server 2008 Books Online

| date=October 2010 |publisher=Microsoft

|access-date=23 August 2015

|archive-date=14 April 2016

|archive-url=https://web.archive.org/web/20160414091949/https://technet.microsoft.com/en-us/library/dd220530(v=sql.100).aspx

|url-status=live

}}

Denali

|SQL Server 2012

|Version 11

|{{cite web

|url=http://www.microsoft.com/sqlserver/en/us/product-info/future-editions.aspx

|title=Microsoft SQL Server Future Editions

|access-date=2010-11-11

|publisher=Microsoft

|archive-date=2011-07-11

|archive-url=https://web.archive.org/web/20110711201427/http://www.microsoft.com/sqlserver/en/us/product-info/future-editions.aspx

|url-status=live

}}

{{cite web

|url=http://msdn.microsoft.com/en-us/library/ms130214(v=sql.110).aspx

|title=Books Online for SQL Server 2012

|access-date=2010-11-11

|work=MSDN

|publisher=Microsoft

|archive-date=2017-09-21

|archive-url=https://web.archive.org/web/20170921214549/https://msdn.microsoft.com/en-us/library/ms130214(v=sql.110).aspx

|url-status=live

}}

{{cite web

|title=SQL Server 2012 Launches 2012 H1

|date=13 October 2011

|url=http://news.softpedia.com/news/SQL-Server-2012-Launches-in-H1-2012-Now-in-the-Final-Production-Stages-227430.shtml

|access-date=2011-10-14

|archive-date=2016-12-07

|archive-url=https://web.archive.org/web/20161207154518/http://news.softpedia.com/news/SQL-Server-2012-Launches-in-H1-2012-Now-in-the-Final-Production-Stages-227430.shtml

|url-status=live

}}

Juneau

|SQL Server Data Tools

|Was included in SQL Server 2012, later released as a standalone downloadable application

|{{cite web

|url=http://msdn.microsoft.com/en-us/data/gg427686

|title=SQL Server Developer Tools, Codename "Juneau"

|access-date=2011-02-25

|work=MSDN

|publisher=Microsoft

|archive-date=2015-01-10

|archive-url=https://web.archive.org/web/20150110035747/http://msdn.microsoft.com/en-us/data/gg427686

|url-status=live

}}

Crescent

|Power View

|A data visualisation tool that originally shipped as part of SQL Server 2012, later an add-in for Microsoft Excel

|{{cite web

|url=http://blogs.msdn.com/b/sqlrsteamblog/archive/2010/11/09/a-glimpse-at-project-crescent.aspx

|title=A Glimpse at Project Crescent

|date=2011-02-25

|work=SQL Server Reporting Services Team Blog

|publisher=Microsoft

|access-date=2011-02-25

|archive-date=2010-12-17

|archive-url=https://web.archive.org/web/20101217081037/http://blogs.msdn.com/b/sqlrsteamblog/archive/2010/11/09/a-glimpse-at-project-crescent.aspx

|url-status=live

}}

SQL14

|SQL Server 2014

|Version 12

|{{cite web

|url=https://docs.microsoft.com/en-us/sql/2014-toc/books-online-for-sql-server-2014?view=sql-server-2014

|title=Books Online for SQL Server 2014

|date=2010-11-11

|work=MSDN

|publisher=Microsoft

|access-date=2019-08-28

|archive-date=2019-08-25

|archive-url=https://web.archive.org/web/20190825193450/https://docs.microsoft.com/en-us/sql/2014-toc/books-online-for-sql-server-2014?view=sql-server-2014

|url-status=dead

}}

Hekaton

|SQL Server In-Memory OLTP

|In-memory database engine built into SQL Server 2014

|{{cite web

|url=https://docs.microsoft.com/sql/relational-databases/in-memory-oltp/overview-and-usage-scenarios

|title=Overview of In-Memory

|date=2017-09-04

|work=SQL Server Blog

|publisher=Microsoft

|access-date=2019-08-28

|archive-date=2022-03-09

|archive-url=https://web.archive.org/web/20220309141237/https://docs.microsoft.com/en-us/sql/relational-databases/in-memory-oltp/overview-and-usage-scenarios?view=sql-server-ver15

|url-status=live

}}

SQL16

|SQL Server 2016

|Version 13

|{{cite web

|url=https://docs.microsoft.com/en-us/sql/sql-server/sql-server-technical-documentation?view=sql-server-2016

|title=Books Online for SQL Server 2016

|date=2017-07-21

|work=MSDN

|publisher=Microsoft

|access-date=2019-08-28

|archive-date=2022-03-09

|archive-url=https://web.archive.org/web/20220309141301/https://docs.microsoft.com/en-us/sql/sql-server/?view=sql-server-2016

|url-status=live

}}

Helsinki

|SQL Server 2017

|Version 14

|{{cite web

|url=https://docs.microsoft.com/en-us/sql/sql-server/sql-server-technical-documentation?view=sql-server-2017

|title=Books Online for SQL Server 2017

|date=2017-10-31

|work=MSDN

|publisher=Microsoft

|access-date=2019-08-28

|archive-date=2019-09-11

|archive-url=https://web.archive.org/web/20190911025100/https://docs.microsoft.com/en-us/sql/sql-server/sql-server-technical-documentation?view=sql-server-2017

|url-status=live

}}

{{cite web

|title=SQL Server on Linux, aka project Helsinki: Story behind the idea

|url=https://blogs.msdn.microsoft.com/slavao/2016/12/20/sql-server-on-linux-aka-project-helsinki-story-behind-the-idea/

|access-date=2019-04-20

|archive-date=2019-04-20

|archive-url=https://web.archive.org/web/20190420145740/https://blogs.msdn.microsoft.com/slavao/2016/12/20/sql-server-on-linux-aka-project-helsinki-story-behind-the-idea/

|url-status=live

}}

Seattle

|SQL Server 2019

|Version 15

|{{cite news

|url=https://www.microsoft.com/en-us/sql-server/sql-server-2019

|title=SQL Server 2019

|access-date=2018-09-25

|archive-date=2011-07-17

|archive-url=https://web.archive.org/web/20110717063252/http://www.microsoft.com/sqlserver/2008/en/us/editions-compare.aspx

|url-status=live

}}

Aris

|SQL Server Big Data Clusters

|Announced at Microsoft Ignite 2018 event on September 24–28. Retirement announced for Feb-28 2025

|{{cite news

|url=https://docs.microsoft.com/en-us/sql/big-data-cluster/big-data-cluster-overview?view=sqlallproducts-allversions

|title=SQL Server Big Data Clusters

|access-date=2019-09-27

|archive-date=2020-08-07

|archive-url=https://web.archive.org/web/20200807005131/https://docs.microsoft.com/en-us/sql/big-data-cluster/big-data-cluster-overview?view=sqlallproducts-allversions

|url-status=live

}}

Dallas

|SQL Server 2022

|Version 16. Public preview available for download. Announced at Microsoft Build 2022 event on May 24

|{{cite news

|url=https://www.microsoft.com/en-us/sql-server/sql-server-2022

|title=SQL Server 2022

}}

=Others=

class="sortable wikitable"
Codename

!Final name

!Ref

Hermes

|Microsoft System Management Server 1.0

|

{{cite web

|url = http://58.240.47.242/~hz/win32/chic_mgt.htm

|title = Press Release: Windows 95 System Management Architecture

|publisher = Microsoft

|date = October 29, 1996

|access-date = 2009-07-31

|url-status = dead

|archive-url = https://web.archive.org/web/20110705171134/http://58.240.47.242/~hz/win32/chic_mgt.htm

|archive-date = July 5, 2011

}}

Catapult

|Microsoft Proxy Server 1.0

|

{{cite web

| url=http://www.microsoft.com/presspass/press/1996/oct96/proxypr.mspx

| title=Press Release: Microsoft Ships Proxy Server 1.0

| work=News Center

| publisher=Microsoft

| date=July 26, 1994

| access-date=2011-02-07}}

Geneva

| Active Directory Federation Services

| {{cite web|last=Dave|first=Martinez|title=Microsoft and CA - ADFS Interop|url=http://download.microsoft.com/download/C/F/D/CFD1D9C8-EBA4-4780-B34B-DBEB5A4792BF/CA-ADFS%20Interop.pdf|work=Microsoft.com|access-date=22 July 2011|date=July 2009|archive-url=https://web.archive.org/web/20120326012948/http://download.microsoft.com/download/C/F/D/CFD1D9C8-EBA4-4780-B34B-DBEB5A4792BF/CA-ADFS%20Interop.pdf|archive-date=26 March 2012|url-status=dead}}

Falcon

| Microsoft Message Queue Server

| {{cite magazine |first=Maggie |last=Biggs |title=Falcon delivers distributed application messages |magazine=InfoWorld |volume=19 |issue=18 |date=5 May 1997 |page=114 |issn=0199-6649 |oclc=61313585 |url=https://books.google.com/books?id=FTwEAAAAMBAJ&pg=PA114 |access-date=21 October 2020 |archive-date=9 March 2022 |archive-url=https://web.archive.org/web/20220309141235/https://books.google.com/books?id=FTwEAAAAMBAJ&pg=PA114 |url-status=live }}

Viper

| Microsoft Transaction Server

| {{cite magazine |first=Maggie |last=Biggs |title=Viper bites into the enterprise |magazine=InfoWorld |volume=18 |issue=46 |date=11 November 1996 |page=97 |issn=0199-6649 |oclc=191857055 |url=https://books.google.com/books?id=hjoEAAAAMBAJ&pg=PA97}}

Normandy

| Microsoft's Commercial Internet System (CIS)

| {{cite web|title=Microsoft Announces "Normandy," a New Platform for Commercial Internet Services; First Solution Designed Specifically for ISPs, Commercial Web Sites|date=4 June 1996 |url=https://news.microsoft.com/1996/06/04/microsoft-announces-normandy-a-new-platform-for-commercial-internet-services-first-solution-designed-specifically-for-isps-commercial-web-sites/}}

Stirling

|Microsoft Forefront Protection Suite

|{{cite web|title=Business Ready Security news at WPC|url=http://blogs.technet.com/b/forefront/archive/2009/07/13/business-ready-security-news-at-wpc.aspx|work=Forefront Team Blog|publisher=Microsoft|access-date=10 August 2013|date=13 July 2009|archive-date=6 June 2013|archive-url=https://web.archive.org/web/20130606001558/http://blogs.technet.com/b/forefront/archive/2009/07/13/business-ready-security-news-at-wpc.aspx|url-status=live}}

Developers tools

=[[Visual Studio]] family=

class="sortable wikitable"
Codename

!Preliminary name

!Final name

!Notes

!Ref

Thunder

|

|Visual Basic 1.0

|The first version of Visual Basic. The standard dialogs and controls created by the Visual Basic runtime library all have "Thunder" as a prefix of their internal type names (for example, buttons are internally known as ThunderCommandButton).

|{{cite web | url=http://blogs.msdn.com/chrsmith/archive/2006/04/30/Some_Microsoft_codenames.aspx | title=Some Microsoft codenames | date=April 30, 2006 | access-date=2006-07-23 | first=Chris |last=Smith | work=Chris Smith's completely unique view | publisher=Microsoft |archive-url=https://web.archive.org/web/20100311072314/http://blogs.msdn.com/chrsmith/archive/2006/04/30/Some_Microsoft_codenames.aspx |archive-date=11 March 2010}}

Escher

|

|Microsoft Visual Basic for MS-DOS

|

|{{Citation needed|date=June 2024}}

Dolphin

|

|Microsoft Visual C++ 2.0

|

|{{Citation needed|date=June 2024}}

Zamboni

|

|Microsoft Visual C++ 4.1

|After Zamboni, an ice resurfacing machine.

|

Boston

|

|Microsoft Visual Studio 97

|Named for Boston, Massachusetts

|{{cite web |url=http://www.v3.co.uk/v3-uk/news/1947659/in-brief-microsoft-names-boston-visual-studio |title=In brief: Microsoft names Boston Visual Studio 97 |work=v3.co.uk |publisher=Incisive Media |date=29 January 1997 |first=Cath |last=Everett |access-date=22 August 2012 |archive-date=3 April 2016 |archive-url=https://web.archive.org/web/20160403034817/http://www.v3.co.uk/v3-uk/news/1947659/in-brief-microsoft-names-boston-visual-studio |url-status=live }}

Aspen

|

|Microsoft Visual Studio 6.0

|Named after the popular ski destination Aspen, Colorado

|{{cite web |url=http://appdb.winehq.org/objectManager.php?sClass=version&iId=4647&iTestingId=15855 |title=Visual Studio 1998 (6.0) |work=WineHQ |publisher=CodeWeavers |access-date=May 18, 2013 |archive-date=May 17, 2013 |archive-url=https://web.archive.org/web/20130517163900/http://appdb.winehq.org/objectManager.php?sClass=version&iId=4647&iTestingId=15855 |url-status=live }}

Cassini Web Server

|

|ASP.NET Development Server

|The lightweight local Web server that is launched in Visual Studio in order to test Web projects

|{{cite web |url=http://msdn.microsoft.com/en-us/library/58wxa9w5.aspx |title=Web Servers in Visual Studio for ASP.NET Web Projects |work=MSDN |publisher=Microsoft |access-date=August 22, 2013 |archive-date=November 5, 2017 |archive-url=https://web.archive.org/web/20171105012822/https://msdn.microsoft.com/en-us/library/58wxa9w5.aspx |url-status=live }}

Hatteras

|Visual Studio Team System's Source Control System

|{{N/A}}

|Named after the Cape Hatteras Lighthouse in the Outer Banks region of North Carolina

|{{cite web |url=http://blogs.msdn.com/crathjen/archive/2004/11/16/258542.aspx |title=Hatteras, Currituck, Ocracoke |date=November 16, 2004 |access-date=2006-07-23 |first=Chris |last=Rathjen |work=Chris Rathjen blog |publisher=Microsoft |archive-date=2006-04-30 |archive-url=https://web.archive.org/web/20060430133825/http://blogs.msdn.com/crathjen/archive/2004/11/16/258542.aspx |url-status=live }}

Ocracoke

|Visual Studio Team System load testing suite

|{{N/A}}

|Named after the Ocracoke Island Lighthouse on Ocracoke Island, also in North Carolina

|

Currituck

|Team Foundation Work Item Tracking

|{{N/A}}

|Named after the Currituck Beach Lighthouse in Corolla, North Carolina

|

Bodie

|Team Foundation Server SDK

|{{N/A}}

|Named after the Bodie Island Lighthouse in North Carolina

|

Tuscany

|

|Online version of Visual Studio.

|Currently a research project

|{{Cite web |url=http://blogs.msdn.com/johnmont/archive/2006/01/11/511402.aspx |title=A View from Elsewhere : A "Live" Version of Visual Studio? |access-date=2006-01-19 |archive-date=2006-01-17 |archive-url=https://web.archive.org/web/20060117092220/http://blogs.msdn.com/johnmont/archive/2006/01/11/511402.aspx |url-status=live }}

Phoenix

|

|{{N/A}}

|A Microsoft research software development kit

|{{cite web |url=http://research.microsoft.com/en-us/collaboration/focus/cs/phoenix.aspx |title=Phoenix Compiler and Shared Source Common Language Infrastructure |work=Microsoft Research |publisher=Microsoft |access-date=August 22, 2013 |archive-date=June 9, 2016 |archive-url=https://web.archive.org/web/20160609072721/http://research.microsoft.com/en-us/collaboration/focus/cs/phoenix.aspx |url-status=live }}

Eaglestone

|

|Visual Studio Team Explorer Everywhere

|This is the name given to the Teamprise suite Microsoft acquired. The product is now named Visual Studio Team Explorer Everywhere

|{{cite web

|url=http://blogs.msdn.com/b/bharry/archive/2010/03/04/microsoft-visual-studio-team-explorer-2010.aspx

|title=Microsoft Visual Studio Team Explorer 2010 codename "Eaglestone"

|publisher=Microsoft

|work=Brian Harry's Blog

|access-date=2011-01-02

|archive-date=2010-07-26

|archive-url=https://web.archive.org/web/20100726115715/http://blogs.msdn.com/b/bharry/archive/2010/03/04/microsoft-visual-studio-team-explorer-2010.aspx

|url-status=live

}}{{cite web |last=Woodward |first=Martin |url=http://www.woodwardweb.com/teamprise/whats_in_a_name.html |title=What's in a Name? - Martin Woodward |work=The Woodward Web |publisher=Self-published |date=2010-03-02 |access-date=2013-06-15 |archive-date=2021-05-07 |archive-url=https://web.archive.org/web/20210507231942/http://www.woodwardweb.com/teamprise/whats_in_a_name.html |url-status=live }}

KittyHawk

|

|Visual Studio LightSwitch

|RAD tool aimed at non-programmers

|{{cite web

|url=http://www.drdobbs.com/windows/microsofts-kittyhawk-rad-tool-takes-flig/226500208

|title=Microsoft's 'KittyHawk' RAD Tool Takes Flight

|last=Bridgwate

|first=Adrian

|work=Dr. Dobb's: The World of Software Development

|publisher=UBM

|date=August 3, 2010

|access-date=2010-08-25

|archive-date=2016-04-09

|archive-url=https://web.archive.org/web/20160409112133/http://www.drdobbs.com/windows/microsofts-kittyhawk-rad-tool-takes-flig/226500208

|url-status=live

}}{{cite web|last1=Foley|first1=Mary Jo|title=Microsoft's LightSwitch: Building business apps for Web, PCs and cloud|url=https://www.zdnet.com/article/microsofts-lightswitch-building-business-apps-for-web-pcs-and-cloud/|website=ZDNet|publisher=CBS Interactive|date=3 August 2010|access-date=15 October 2016|archive-date=5 May 2021|archive-url=https://web.archive.org/web/20210505124750/http://www.zdnet.com/article/microsofts-lightswitch-building-business-apps-for-web-pcs-and-cloud/|url-status=live}}

Rainier

|

|Visual Studio .NET (2002)

|Named for Mount Rainier, a volcanic mountain peak visible from the Seattle area (where Microsoft is based)

|{{cite web

|url=http://www.code-magazine.com/Article.aspx?quickid=1006081

|title=Reflections on a Decade of Visual Studio

|work=Code Magazine

|publisher=EPS Software

|access-date=2011-01-02

|archive-date=2013-09-09

|archive-url=https://web.archive.org/web/20130909022234/http://code-magazine.com/Article.aspx?quickid=1006081

|url-status=live

}}

Everett

|

|Visual Studio .NET 2003

|Named after the town Everett, Washington, in Washington state

|{{cite web

|url=http://blogs.msdn.com/b/danielfe/archive/2003/09/18/51839.aspx

|title=Product Names: Everett, Whidbey, Orcas

|publisher=Microsoft

|work=Dan Fernandez's Blog

|last=Dan

|first=Fernandez

|date=September 18, 2003

|access-date=2011-01-02

|archive-date=2012-10-23

|archive-url=https://web.archive.org/web/20121023185058/http://blogs.msdn.com/b/danielfe/archive/2003/09/18/51839.aspx

|url-status=live

}}{{cite web

|url=http://www.dnjonline.com/articles/backend/codenames.asp

|title=Microsoft Codenames

|publisher=Matt Publishing

|access-date=2011-01-02

|archive-date=2010-04-13

|archive-url=https://web.archive.org/web/20100413121644/http://www.dnjonline.com/articles/backend/codenames.asp

|url-status=live

}}

Whidbey

|

|Visual Studio 2005

|Named after Whidbey Island in the Puget Sound

|

Orcas

|

|Visual Studio 2008

|Named after Orcas Island in the Puget Sound

|

Camano

|Microsoft Test and Lab Manager

|Microsoft Test Manager, a part of Visual Studio 2010 Test Professional, Premium and Ultimate editions

|Named after Camano Island in the Puget Sound

|{{cite web |url=http://elegantcode.com/2007/12/11/introducing-microsoft-camano/ |title=Introducing Microsoft Camano |first=David |last=Starr |date=2007-12-11 |work=Elegant Code |publisher=Self-published |access-date=2013-09-06 |archive-url=https://web.archive.org/web/20140408224248/http://elegantcode.com/2007/12/11/introducing-microsoft-camano/ |archive-date=2014-04-08 |url-status=dead }}{{cite web |url=http://blogs.msdn.com/b/charles_sterling/archive/2008/11/05/visual-studio-team-system-2010-test-features-walk-through-with-screen-shots.aspx |title=Visual Studio Team System 2010 Test Features walk through with screen shots |first=Charles |last=Sterling |date=2008-11-05 |work=Ozzie Rules Blogging |publisher=Microsoft |access-date=2013-09-06 |archive-date=2014-04-08 |archive-url=https://web.archive.org/web/20140408215414/http://blogs.msdn.com/b/charles_sterling/archive/2008/11/05/visual-studio-team-system-2010-test-features-walk-through-with-screen-shots.aspx |url-status=live }}{{cite web |url=http://blogs.msdn.com/b/jasonz/archive/2009/05/12/announcing-microsoft-test-and-lab-manager.aspx |title=New Name for Test and Lab Tools |first=Jason |last=Zander |work=Jason Zander's blog |publisher=Microsoft |date=2009-05-12 |access-date=2013-09-06 |archive-date=2010-06-22 |archive-url=https://web.archive.org/web/20100622063324/http://blogs.msdn.com/b/jasonz/archive/2009/05/12/announcing-microsoft-test-and-lab-manager.aspx |url-status=live }}

Rosario

|

|Visual Studio Ultimate 2010 (formerly Team System or Team Suite)

|

|{{cite web |url=http://www.microsoft.com/presspass/press/2008/sep08/09-29vs10pr.mspx |title=Microsoft Unveils Next Version of Visual Studio and .NET Framework |publisher=Microsoft |work=News Center |access-date=2011-01-02 |archive-date=2009-08-15 |archive-url=https://web.archive.org/web/20090815083038/http://www.microsoft.com/presspass/press/2008/sep08/09-29VS10PR.mspx |url-status=live }}

Cider

|

|{{N/A}}

|Visual Studio designer for building Windows Presentation Foundation applications, meant to be used by application developers

|{{cite web |url=http://blogs.msdn.com/b/jaimer/archive/2009/10/23/what-is-new-in-wpf-and-cider-on-the-net-framework-4-and-vs2010-beta-2-release.aspx |title=What is new in WPF and Cider on the .NET Framework 4 and VS2010 beta 2 release |work=MSDN Blogs |publisher=Microsoft |date=23 October 2009 |access-date=August 22, 2013 |first=Jaime |last=Rodriguez |archive-date=5 August 2013 |archive-url=https://web.archive.org/web/20130805032242/http://blogs.msdn.com/b/jaimer/archive/2009/10/23/what-is-new-in-wpf-and-cider-on-the-net-framework-4-and-vs2010-beta-2-release.aspx |url-status=live }}

Monaco

|

|Monaco Editor

|In-browser IDE for Visual Studio. Monaco powers Visual Studio Code.

|{{cite web|last1=Yegulalp|first1=Serdar|title=Microsoft reinvents Visual Studio as an Azure cloud service|url=http://www.infoworld.com/article/2609774/cloud-computing/microsoft-reinvents-visual-studio-as-an-azure-cloud-service.html|website=InfoWorld|publisher=IDG|access-date=23 August 2015|date=14 November 2013|archive-date=29 March 2021|archive-url=https://web.archive.org/web/20210329144709/https://www.infoworld.com/article/2609774/microsoft-reinvents-visual-studio-as-an-azure-cloud-service.html|url-status=live}}{{cite web |title=Monaco Editor |url=https://microsoft.github.io/monaco-editor/index.html |publisher=Microsoft |website=GitHub |access-date=24 March 2017 |archive-date=12 December 2021 |archive-url=https://web.archive.org/web/20211212193340/https://microsoft.github.io/monaco-editor/index.html |url-status=live }}

=.NET Framework family=

class="sortable wikitable"
Codename

!Final name

!Notes

!Ref

Astoria

|WCF Data Services

|Enables the creation and consumption of OData services for the web

|{{cite web|title=ADO.NET Data Services CTP Released! - Data - Site Home - MSDN Blogs|url=http://blogs.msdn.com/b/data/archive/2007/12/10/ado-net-data-services-ctp-released.aspx|access-date=5 December 2012|archive-date=22 May 2011|archive-url=https://web.archive.org/web/20110522092422/http://blogs.msdn.com/b/data/archive/2007/12/10/ado-net-data-services-ctp-released.aspx|url-status=live}}

Atlas

|ASP.NET AJAX

|An implementation for ASP.NET of Ajax native to .NET Framework 2.0

|{{cite web |url=http://www.developerfusion.com/article/84337/microsoft-atlas-8211-the-ajax-extension-to-aspnet-20 |title=Microsoft Atlas - the AJAX extension to ASP.NET 2.0 |work=Developer Fusion |publisher=Developer Fusion Ltd |date=28 June 2010 |access-date=August 22, 2013 |first=Vikram |last=Srivatsa |archive-date=10 April 2016 |archive-url=https://web.archive.org/web/20160410100632/http://www.developerfusion.com/article/84337/microsoft-atlas-8211-the-ajax-extension-to-aspnet-20 |url-status=dead }}

Avalon

|Windows Presentation Foundation

|Graphical subsystem released as part of .NET Framework 3.0

|{{cite web |url=http://www.codeproject.com/Articles/13993/WPF-Avalon-Demo-1 |title=WPF ("Avalon") Demo 1 |work=CodeProject.com |publisher=CodeProject |date=2 May 2006 |access-date=August 22, 2013 |first=A. |last=Gharighi |archive-date=16 July 2021 |archive-url=https://web.archive.org/web/20210716104218/https://www.codeproject.com/Articles/13993/WPF-Avalon-Demo-1 |url-status=live }}

Fusion

|{{N/A}}

|.NET Framework subsystem for locating and loading assemblies, including GAC management

|{{cite web |title=Using the .NET Fusion API to Manipulate the GAC |url=http://www.developer.com/net/cplus/article.php/3641491/Using-the-NET-Fusion-API-to-Manipulate-the-GAC.htm |work=developer.com |publisher=Quinstreet Enterprise |date=2006-11-03 |access-date=2013-10-17 |archive-date=2016-04-09 |archive-url=https://web.archive.org/web/20160409030319/http://www.developer.com/net/cplus/article.php/3641491/Using-the-NET-Fusion-API-to-Manipulate-the-GAC.htm |url-status=live }}{{cite web |url=http://msdn.microsoft.com/en-us/library/ms404523.aspx |title=Fusion (Unmanaged API Reference) |work=MSDN Library |access-date=2013-10-17 |publisher=Microsoft |archive-date=2016-05-30 |archive-url=https://web.archive.org/web/20160530175619/https://msdn.microsoft.com/en-us/library/ms404523.aspx |url-status=live }}

Hailstorm

|.NET My Services

|

|{{cite news |url=http://www.codemag.com/Article/0205061 |title=Introducing .NET My Services |last=Egger |first=Markus |publisher=EPS Software |work=Code Magazine |issue=May/June 2002 |access-date=9 January 2018 |archive-date=12 January 2018 |archive-url=https://web.archive.org/web/20180112100838/http://www.codemag.com/Article/0205061 |url-status=live }}

Indigo

|Windows Communication Foundation

|An application programming interface (API) in .NET Framework for building connected, service-oriented applications

|{{cite web|title=Introducing Indigo: An Early Look|date=11 May 2010 |url=http://msdn.microsoft.com/en-us/library/aa480188.aspx|access-date=19 October 2011|archive-date=7 September 2018|archive-url=https://web.archive.org/web/20180907010104/https://msdn.microsoft.com/en-us/library/aa480188.aspx|url-status=live}}

Jolt

|Silverlight 1.0

|

|{{cite book|last1=Jeremy|first1=Likness|title=Designing Silverlight Business Applications|date=28 March 2012|publisher=Addison-Wesley|isbn=9780132885904|page=344|url=https://books.google.com/books?id=Q95VQqAUmDAC&pg=PT344|quote=Silverlight runtime contains some classes from named Jolt from its earliest days}}

Lightning, Project 42

|.NET Framework 1.0

|Project Lightning was the original codename for the Common Language Runtime in 1997. The team was based in building 42, hence Project 42.

|{{cite web | url=http://www.code-magazine.com/Article.aspx?quickid=0501091 | title=Jay Roxe interview | date=January 2005 | access-date=2006-07-23 | first=Carl | last=Franklin | work=Code Magazine | publisher=EPS Software | archive-date=2013-09-09 | archive-url=https://web.archive.org/web/20130909083726/http://code-magazine.com/Article.aspx?quickid=0501091 | url-status=live }}{{cite web | url=http://www.theage.com.au/articles/2003/02/17/1045330514779.html | title=How .Net-work drew sceptics | date=February 18, 2003 | access-date=2006-07-23 | first=Eric | last=Wilson | work=The Age | archive-date=2016-04-23 | archive-url=https://web.archive.org/web/20160423154413/http://www.theage.com.au/articles/2003/02/17/1045330514779.html | url-status=live }}

Project 7

|{{N/A}}

|Early program to recruit implementors of both commercial and academic languages to target the Common Language Runtime. 7 was a prime factor of 42, metaphorizing the relationship between Project 7 and Project 42 (see above).

|{{cite news|last=Wilson|first=Eric|title=How .Net-work drew sceptics|url=http://www.smh.com.au/articles/2003/02/17/1045330514779.html|access-date=31 October 2011|newspaper=The Sydney Morning Herald|archive-date=12 January 2018|archive-url=https://web.archive.org/web/20180112174528/http://www.smh.com.au/articles/2003/02/17/1045330514779.html|url-status=live}}

Roslyn

|.NET Compiler Platform

|Open-source project that exposes programmatic access to compilers via corresponding APIs

|{{cite web | url=http://blogs.msdn.com/b/ericlippert/archive/2010/12/16/hiring-for-roslyn.aspx | title=Hiring for Roslyn | date=December 2010 | access-date=2011-07-18 | first=Eric | last=Lippert | archive-date=2011-09-18 | archive-url=https://web.archive.org/web/20110918104911/http://blogs.msdn.com/b/ericlippert/archive/2010/12/16/hiring-for-roslyn.aspx | url-status=live }}{{cite web | url=http://codebetter.com/patricksmacchia/2010/05/31/c-5-and-meta-programming/ | title=C# 5 and meta-programming | date=May 2010 | access-date=2011-07-18 | first=Patrick | last=Smacchia | archive-date=2011-08-06 | archive-url=https://web.archive.org/web/20110806100700/http://codebetter.com/patricksmacchia/2010/05/31/c-5-and-meta-programming/ | url-status=live }}{{cite web | url=http://tirania.org/blog/archive/2010/Apr-27.html | title=Mono's C# Compiler as a service on Windows | date=April 2010 | access-date=2011-07-18 | first=Miguel | last=de Icaza | archive-date=2020-11-09 | archive-url=https://web.archive.org/web/20201109003335/https://tirania.org/blog/archive/2010/Apr-27.html | url-status=live }}{{cite web | url=https://techcrunch.com/2014/04/03/microsoft-extends-its-net-framework-with-new-compiler-platform-and-language-features/ | title=Microsoft Extends Its .NET Framework With New Compiler Platform And Language Features | date=2014-04-03 | access-date=2015-05-10 | archive-date=2020-11-30 | archive-url=https://web.archive.org/web/20201130061918/https://techcrunch.com/2014/04/03/microsoft-extends-its-net-framework-with-new-compiler-platform-and-language-features/ | url-status=live }}

=Languages=

{{More citations needed section|date = January 2016}}

class="sortable wikitable"
Codename

!Final name

!Notes

!Ref

Clarity

|Language Integrated Query (LINQ)

|LINQ Language extensions to expose query syntax natively to languages such as Visual Basic .NET and C#

|{{Citation needed|date=June 2024}}

D

|M

|Modelling language

|{{Citation needed|date=June 2024}}

Jakarta

|Visual J++

|Named after the capital of Indonesia, Jakarta

|

Metro

|Microsoft Design language

|A typography-based design language

|*{{cite book|author=Adam Freeman|year=2012|title=Metro Revealed|publisher=apress|isbn=9781430244882}}

=Others=

class="sortable wikitable"
Codename

!Final name

!Notes

!Ref

Godot

|Microsoft Layer for Unicode

|Named after the play Waiting for Godot (centered around the endless wait for a man named "Godot" who never comes), because it was felt to be long overdue.

|{{cite web | url=http://www.siao2.com/2005/02/12/371650.aspx | title=Why/how MSLU came to be, and more | date=February 12, 2005 | access-date=2006-07-23 | first=Michael | last=Kaplan | work=Sorting It All Out | publisher=Microsoft | archive-date=2014-08-12 | archive-url=https://archive.today/20140812020456/http://www.siao2.com/2005/02/12/371650.aspx | url-status=live }}

Volta

|{{N/A}}

|A developer toolset for building multi-tier web applications

|{{cite web|last=Schwarz|first=Michael|title=Volta - Microsoft Live Labs|url=http://weblogs.asp.net/mschwarz/archive/2008/01/03/volta-microsoft-live-labs.aspx|work=Michael's Blog|publisher=Neudesic|access-date=6 May 2014|date=3 January 2008|archive-date=7 May 2014|archive-url=https://web.archive.org/web/20140507002854/http://weblogs.asp.net/mschwarz/archive/2008/01/03/volta-microsoft-live-labs.aspx|url-status=live}}

Project Centennial

|Desktop App Converter

|Allows developers to re-package existing desktop apps into the APPX format of Universal Windows Platform and sell them in Windows Store.

|{{Cite web|url=https://arstechnica.com/information-technology/2016/09/desktop-apps-make-their-way-into-the-windows-store/|title=Desktop apps make their way into the Windows Store|last=Bright|first=Peter|date=14 September 2016|website=Ars Technica|access-date=14 June 2017|archive-date=14 September 2016|archive-url=https://web.archive.org/web/20160914180943/https://arstechnica.com/information-technology/2016/09/desktop-apps-make-their-way-into-the-windows-store/|url-status=live}}{{Cite web|url=https://www.microsoft.com/en-us/download/details.aspx?id=51691|title=Desktop App Converter Preview (Project Centennial)|date=27 May 2016|website=Download Center|publisher=Microsoft|access-date=15 September 2016|archive-date=18 February 2017|archive-url=https://web.archive.org/web/20170218184257/https://www.microsoft.com/en-us/download/details.aspx?id=51691|url-status=live}}

Gaming hardware

class="sortable wikitable"
Codename

!Final name

!Notes

!Ref

DirectX Box

|Xbox

|

|{{cite web|last1=Karmali|first1=Luke|title=Rejected Names for the Original Xbox Revealed|url=http://www.ign.com/articles/2013/07/08/rejected-names-for-the-original-xbox-revealed|website=IGN|publisher=Ziff Davis|date=6 July 2013|access-date=16 June 2016|archive-date=31 August 2021|archive-url=https://web.archive.org/web/20210831072129/https://www.ign.com/articles/2013/07/08/rejected-names-for-the-original-xbox-revealed|url-status=live}}

Natal

|Kinect

|Motion sensitive control system.

|{{cite web |url=http://www.pcworld.com/article/166027/future_controller_wars_natal_vs_ps3.html |title=Future Controller Wars: Natal vs PS3 |newspaper=PC World |first=Ian |last=Paul |date=3 June 2009 |access-date=22 February 2011 |archive-date=8 January 2011 |archive-url=https://web.archive.org/web/20110108131158/http://www.pcworld.com/article/166027/future_controller_wars_natal_vs_ps3.html |url-status=dead }}{{cite web |url=https://www.usatoday.com/tech/gaming/2010-06-14-vidgame14_ST_N.htm |title=Microsoft Kinect gets into motion as E3 confab kicks off |work=USA Today |first=Mike |last=Snider |date=14 June 2010 |access-date=22 February 2011 |archive-date=16 March 2012 |archive-url=https://web.archive.org/web/20120316140618/http://www.usatoday.com/tech/gaming/2010-06-14-vidgame14_ST_N.htm |url-status=live }}

Xenon

|Xbox 360

| Successor to the original Xbox.

|{{cite web |title=The Xbox Xenon? |url=https://www.engadget.com/2004/06/05/the-xbox-xenon/ |work=Engadget |publisher=AOL |first=Peter |last=Rojas |date=5 June 2004 |access-date=5 August 2012 |archive-date=10 February 2017 |archive-url=https://web.archive.org/web/20170210221034/https://www.engadget.com/2004/06/05/the-xbox-xenon/ |url-status=live }}

Durango

|Xbox One

|Successor to Xbox 360.

|{{cite web |title=Next-gen Xbox 'Durango' codename accidentally confirmed by Crytek? |url=https://www.theverge.com/gaming/2012/2/28/2830897/next-gen-xbox-durango-codename-accidentaly-confirmed-by-crytek |work=The Verge |publisher=Vox Media |first=Griffin |last=McElroy |date=28 February 2012 |access-date=13 August 2012 |archive-date=24 August 2012 |archive-url=https://web.archive.org/web/20120824075935/http://www.theverge.com/gaming/2012/2/28/2830897/next-gen-xbox-durango-codename-accidentaly-confirmed-by-crytek |url-status=live }}

Edmonton

| Xbox One S

| Xbox One with 4K and HEVC Support.

|{{cite web |title=Xbox One Slim Announced, Out This August [UPDATE] |url=https://kotaku.com/xbox-one-slim-announced-out-this-august-update-1781845089 |work=Kotaku |publisher=Gawker |first=Jason |last=Schreier |date=13 June 2016 |access-date=26 June 2020 |archive-date=20 July 2021 |archive-url=https://web.archive.org/web/20210720070823/https://kotaku.com/xbox-one-slim-announced-out-this-august-update-1781845089 |url-status=live }}

Scorpio

|Xbox One X

|Upgrade to Xbox One, announced at Electronic Entertainment Expo 2016. Has 6 TFLOPS GPU and 8-core CPU.

|{{cite web|last1=Warren|first1=Tom|title=Xbox One X is Microsoft's next game console, arriving on November 7th for $499|url=https://www.theverge.com/2017/6/11/15774918/microsoft-xbox-one-x-release-date-price-new-console-announced-e3-2017|website=The Verge|publisher=Vox Media|date=11 June 2017|access-date=12 June 2017|archive-date=12 June 2017|archive-url=https://web.archive.org/web/20170612004033/https://www.theverge.com/2017/6/11/15774918/microsoft-xbox-one-x-release-date-price-new-console-announced-e3-2017|url-status=live}}

Scarlett

|Xbox Series X and Series S

|Project name for a family of next-gen consoles. Xbox Anaconda and Xbox Lockhart are both part of Project Scarlet. Announced by Microsoft at E3 2018.

|{{cite web|last1=Hempel|first1=Jessi|title=Next-Gen Xbox Consoles Codenamed 'Scarlet,' Claim Multiple Sources|url=https://www.ign.com/videos/2018/06/10/full-microsoft-press-conference-e3-2018/|website=IGN|publisher=IGN News|date=18 December 2018|access-date=19 December 2018|archive-date=27 April 2020|archive-url=https://web.archive.org/web/20200427135208/https://www.ign.com/videos/2018/06/10/full-microsoft-press-conference-e3-2018|url-status=live}}

Anaconda

|Xbox Series X

|Successor to Xbox One. Higher end model. Announced by Microsoft at The Game Awards 2019. Later called "Starkville"{{Cite web |last=Warren |first=Tom |date=2023-09-19 |title=This is Microsoft's new disc-less Xbox Series X design with a lift-to-wake controller |url=https://www.theverge.com/2023/9/19/23880111/microsoft-xbox-series-x-new-design-refresh |access-date=2023-09-19 |website=The Verge |language=en-US}}

|Xbox Series X and Series S

Lockhart

|Xbox Series S

|Potential lower end model for a cheaper price. Was announced by Microsoft in September 2020. Would be successor to Xbox One S. Later called "Edith".

|{{cite web|last1=Corden|first1=Jez|title=Xbox codenames, everything (we think) we know.|url=https://www.windowscentral.com/xbox-scarlett|publisher=Windows Central|date=5 April 2019|access-date=6 May 2019|archive-date=18 June 2020|archive-url=https://web.archive.org/web/20200618233507/https://www.windowscentral.com/xbox-scarlett|url-status=live}}

Ellewood

|Xbox Series S - 1TB Digital Edition

|Codename for the Xbox Series S - 1TB Digital Edition console.

|

Brooklin

|Xbox Series X - 2TB Galaxy Black Special Edition

|Codename for the Xbox Series X - 2TB Galaxy Black Special Edition console.

|

Edinburgh

|

|Originally spotted by software developer bllyhlbrt on Twitter, a new codename, Xbox Edinburgh, can be seen within the Xbox One's operating system, underneath Lockhart and Anaconda.

|{{Cite web|last=Moore-Colyer|first=Roland|title=Xbox Series X could launch alongside surprise 'Edinburgh' console|url=https://www.tomsguide.com/news/xbox-edinburgh-codename-hints-xbox-series-x-wont-launch-alone|date=3 July 2020|access-date=2020-07-16|website=Tom's Guide|language=en|archive-date=2021-01-16|archive-url=https://web.archive.org/web/20210116085453/https://www.tomsguide.com/news/xbox-edinburgh-codename-hints-xbox-series-x-wont-launch-alone|url-status=live}}

Count

|

|One of the codenames originally spotted by software developer bllyhlbrt on Twitter.

|

[[Office software]]

{{More citations needed section|date = January 2016}}

class="sortable wikitable"
Codename

!Preliminary name

!Final name

!Notes

!Ref

Albany

|

|Microsoft Equipt

|Microsoft's all-in-one, subscription-based service for office, communication, and security software

|{{Cite web |url=http://www.microsoft.com/presspass/press/2008/jul08/07-02equiptpr.mspx |title=Microsoft Launches Consumer Subscription Offering That Combines Microsoft Office and Windows Live OneCare |website=Microsoft |access-date=2011-05-06 |archive-date=2012-02-23 |archive-url=https://web.archive.org/web/20120223005310/http://www.microsoft.com/presspass/press/2008/jul08/07-02EquiptPR.mspx |url-status=live }}

Bandit

|

|Schedule+ 1.0

|Microsoft's first Personal Information Manager

|{{Citation needed|date=June 2024}}

Barney

|

|Money 1.0

|Microsoft's personal finance software (Flintstones theme)

|{{Citation needed|date=June 2024}}

Betty

|

|Money 2.0

|{{Citation needed|date=June 2024}}

|

Budapest

|

|Microsoft Office Communicator Web Access 2005

|{{Citation needed|date=June 2024}}

|

Bullet

|

|Microsoft Mail 3.0

|Microsoft's first LAN-based email product written in-house

|{{Citation needed|date=June 2024}}

Cirrus

|

|Microsoft Access 1.0

|

|{{Citation needed|date=June 2024}}

CRM V1.0, Tsunami

|

|Microsoft CRM 1.0

|The platform was initially codenamed Tsunami, but once the decision was made to make it an actual product it was just changed to the initials as the initials were enough of a codename.

|{{Cite web |url=http://blogs.msdn.com/crm/archive/2006/08/28/728400.aspx |title=Microsoft Dynamics CRM Team Blog : CRM Code Names - A Brief History |access-date=2007-08-20 |archive-date=2008-01-02 |archive-url=https://web.archive.org/web/20080102060151/http://blogs.msdn.com/crm/archive/2006/08/28/728400.aspx |url-status=live }}

Danube Phase I

|

|Microsoft CRM 1.2

|

|

Danube Phase II

|

|Microsoft CRM 3

|

|

Dino

|

|Microsoft Money 3.0

|

|{{Citation needed|date=June 2024}}

Kilimanjaro

|Titan

|Microsoft CRM 4

|Was originally Kilimanjaro but changed to Titan, as Kilimanjaro was too difficult to spell

|

Deco

|

|Microsoft PhotoDraw

|

|{{Citation needed|date=June 2024}}

Greenwich

|Real-Time Communications Server 2003

|Microsoft Office Live Communications Server 2003

|

|{{Citation needed|date=June 2024}}

Istanbul

|

|Microsoft Office Communicator 2005

|

|{{Citation needed|date=June 2024}}

Maestro

|

|Microsoft Office Business Scorecard Manager 2005

|

|{{Citation needed|date=June 2024}}

Opus

|

|Word for Windows v1.0 for Windows 2.x

|

|{{Citation needed|date=June 2024}}

Oslo

|Microsoft BizTalk Server SOA, SQL Server Modeling CTP

|{{N/A}}

|Set of Service-oriented architecture (SOA) technologies

|{{cite web |last=De la Torre Llorente |first=César |title=Model-Driven SOA with "Oslo" |url=http://msdn.microsoft.com/en-us/architecture/aa699436.aspx |work=MSDN Architecture Center |publisher=Microsoft |access-date=7 December 2012 |date=September 2009 |archive-date=27 October 2012 |archive-url=https://web.archive.org/web/20121027064111/http://msdn.microsoft.com/en-us/architecture/aa699436.aspx |url-status=live }}{{cite web |url=http://blogs.msdn.com/b/modelcitizen/archive/2010/09/22/update-on-sql-server-modeling-ctp-repository-modeling-services-quot-quadrant-quot-and-quot-m-quot.aspx |title=Update on SQL Server Modeling CTP (Repository/Modeling Services, "Quadrant" and "M") |work=Model Citizen blog |publisher=Microsoft |first=Kraig |last=Brockschmidt |date=22 September 2010 |access-date=7 December 2012 |archive-date=4 December 2012 |archive-url=https://web.archive.org/web/20121204165437/http://blogs.msdn.com/b/modelcitizen/archive/2010/09/22/update-on-sql-server-modeling-ctp-repository-modeling-services-quot-quadrant-quot-and-quot-m-quot.aspx |url-status=live }}{{cite web|title=SQL Server Modeling CTP - Nov 2009 Release 3 (formerly "Oslo")|url=http://www.microsoft.com/en-us/download/details.aspx?id=24113|work=Download Center|publisher=Microsoft|access-date=7 December 2012|date=20 April 2010|archive-date=23 March 2016|archive-url=https://web.archive.org/web/20160323234018/http://www.microsoft.com/en-us/download/details.aspx?id=24113|url-status=live}}

Ren, Stimpy

|Wren

|Microsoft Outlook

|"Stimpy" was merged into "Ren", which later became "Wren". "Ren" and "Stimpy" are references to Ren and Stimpy, characters of an American animated television series. "Wren", a homophone of "Ren", is a reference to Christopher Wren, the architect of St Paul's Cathedral.

|{{cite web|url=https://blogs.msdn.microsoft.com/oldnewthing/20140506-00/?p=1063|title=Letting the boss think your project is classier than it really is|last=Chen|first=Raymond|date=6 May 2014|website=The Old New Thing|publisher=Microsoft|access-date=23 January 2016|archive-date=18 February 2019|archive-url=https://web.archive.org/web/20190218143015/https://blogs.msdn.microsoft.com/oldnewthing/20140506-00/?p=1063|url-status=live}}

Rigel

|

|Skype Room Systems

|A meeting room system designed to interface with Skype

|{{Cite news|url=https://www.nojitter.com/post/240172239/skype-for-business-rooms-the-rigel-effect--logitechs-smartdock|title=Skype for Business Rooms: the Rigel Effect & Logitech's SmartDock|access-date=2018-06-04|archive-date=2017-12-31|archive-url=https://web.archive.org/web/20171231001612/http://www.nojitter.com/post/240172239/skype-for-business-rooms-the-rigel-effect--logitechs-smartdock|url-status=live}}

Tahiti

|Microsoft SharedView

|{{N/A}}

|A screen sharing tool which allows users to take over sessions and interact with remote desktops. No audio or conference facilities.

|{{cite web

|url = https://connect.microsoft.com/site94/Surveys

|title = Microsoft SharedView

|work = Microsoft Connect

|publisher = Microsoft Corporation

|access-date = 22 December 2010

|url-status = dead

|archive-url = https://web.archive.org/web/20110101191514/http://connect.microsoft.com/site94/Surveys

|archive-date = 1 January 2011

}}{{cite web

|url = http://www.zdnet.com/blog/microsoft/a-microsoft-code-name-a-day-tahiti/643

|title = A (Microsoft) Code Name a Day: Tahiti

|work = ZDNet News

|publisher = CBS Interactive

|date = 14 August 2007

|access-date = 22 December 2010

|first = Mary Jo

|last = Foley

|archive-date = 7 May 2014

|archive-url = https://web.archive.org/web/20140507003340/http://www.zdnet.com/blog/microsoft/a-microsoft-code-name-a-day-tahiti/643

|url-status = dead

}}

Tahoe

|

|SharePoint Portal Server 2001

|

|

Utopia

|

|Microsoft Bob

|Intended to be a user-friendly GUI

|{{cite web

|url = https://technet.microsoft.com/en-us/magazine/2008.07.windowsconfidential.aspx

|title = Raymond Chen discusses Microsoft Bob

|work = Microsoft Technet

|first = Raymond

|last = Chen

|publisher = Microsoft Corporation

|access-date = 30 December 2012

|archive-date = 21 August 2016

|archive-url = https://web.archive.org/web/20160821224220/https://technet.microsoft.com/en-us/magazine/2008.07.windowsconfidential.aspx

|url-status = live

}}

Other codenames

{{More citations needed section|date = January 2016}}

class="sortable wikitable"
Codename

!Preliminary name

!Final name

!Notes

!Ref

Acropolis

|

|{{N/A}}

|Application framework for Smart Clients

|{{Citation needed|date=June 2024}}

Aero Diamond

|

|{{N/A}}

|Used during the development of Windows Vista to describe a set of advanced user interface effects for the Desktop Window Manager to be introduced after Vista's release

|{{Cite web |url=http://www.istartedsomething.com/20070130/interview-tjeerd-ces2007/#aerodiamond |title=Interview with Tjeerd Hoek, director of user experience design for Windows - istartedsomething |date=29 January 2007 |access-date=2007-02-17 |archive-date=2021-06-02 |archive-url=https://web.archive.org/web/20210602173259/https://www.istartedsomething.com/20070130/interview-tjeerd-ces2007/#aerodiamond |url-status=live }}

Alexandria

|

|Zune Marketplace

|An online music store

|{{Citation needed|date=June 2024}}

Argo

|

|Zune

|A digital media player

|{{Citation needed|date=June 2024}}

Atlanta

|

|{{N/A}}

|A cloud service that monitors Microsoft SQL Server deployments

|{{cite web |url=http://news.softpedia.com/news/Introducing-Codename-Atlanta-Cloud-Monitoring-of-SQL-Server-Deployments-169846.shtml |title=Introducing Codename Atlanta - Cloud Monitoring of SQL Server Deployments |first=Marius |last=Oiaga |date=December 1, 2010 |access-date=2010-12-04 |work=Softpedia |publisher=SoftNews |archive-date=2016-04-10 |archive-url=https://web.archive.org/web/20160410074045/http://news.softpedia.com/news/Introducing-Codename-Atlanta-Cloud-Monitoring-of-SQL-Server-Deployments-169846.shtml |url-status=live }}

Baraboo

|

|Microsoft HoloLens

|

|{{cite magazine|last1=Hempel|first1=Jessi|title=Project HoloLens: Our Exclusive Hands-On With Microsoft's Holographic Goggles|url=https://www.wired.com/2015/01/microsoft-hands-on/|magazine=Wired|date=21 January 2015|access-date=19 June 2017|archive-date=17 May 2017|archive-url=https://web.archive.org/web/20170517233311/https://www.wired.com/2015/01/microsoft-hands-on/|url-status=live}}

Blackbird

|

|{{N/A}}

|An online content-authoring platform centered around the concept of distributed Object Linking and Embedding (OLE) and meant to be an alternative to HTML. The developer tools were originally released in beta and some titles were made available on MSDN before it was scrapped in favor of web development around ASP and ActiveX and the designer was refashioned into Visual InterDev.

|{{Citation needed|date=June 2024}}

Concur

|

|{{N/A}}

|Aims to: define higher-level abstractions (above "threads and locks"); for today's imperative languages; that evenly support the range of concurrency granularities; to let developers write correct and efficient concurrent applications; with much latent parallelism; that can be efficiently mapped to the user's.

|{{Citation needed|date=June 2024}}

Dallas

|

|{{N/A}}

|Aims to help discover, purchase and manage, premium data subscriptions in the Windows Azure platform

|{{Cite web |url=http://www.microsoft.com/WindowsAzure/dallas/ |title=Microsoft Codename "Dallas" |website=Microsoft |access-date=2010-04-13 |archive-date=2010-10-06 |archive-url=https://web.archive.org/web/20101006133347/http://www.microsoft.com/WindowsAzure/dallas/ |url-status=live }}

Dorado

|

|Zune PC Client

|

|{{Citation needed|date=June 2024}}

Eldorado

|

|MVP Reconnect

|Program to recognize alumni of Microsoft's Most Valuable Professional award program when they left the program in good standing or were not re-awarded.

|{{Cite web |url=https://mvp.microsoft.com/en-us/MVPReconnectSearch |title=MVP Reconnect members |website=Microsoft |access-date=2023-05-19 |archive-date=2023-05-18 |archive-url=https://web.archive.org/web/20230518155108/https://mvp.microsoft.com/en-us/MVPReconnectSearch |url-status=live }}

HailStorm

|

|.NET My Services

|Collection of web services centered around the storage and retrieval of information. Cancelled before it could fully materialize.

|{{cite web |url=https://msdn.microsoft.com/en-us/library/bb263932%28v=vs.85%29.aspx |title=A Quick Introduction to HailStorm |last=Hess |first=Robert |date=May 14, 2001 |publisher=Microsoft |work=MSDN |access-date=May 5, 2015 |archive-date=February 14, 2018 |archive-url=https://web.archive.org/web/20180214014604/https://msdn.microsoft.com/en-us/library/bb263932(v=vs.85).aspx |url-status=live }}{{cite web |url=https://www.nytimes.com/2002/04/11/technology/ebusiness/11NET.html |title=Microsoft Has Shelved Its Internet 'Persona' Service |last=Markoff |first=John |date=April 11, 2002 |work=The New York Times |access-date=May 5, 2015 |archive-date=August 2, 2016 |archive-url=https://web.archive.org/web/20160802205934/http://www.nytimes.com/2002/04/11/technology/ebusiness/11NET.html |url-status=live }}

Honolulu

|

|Windows Admin Center

|

|{{Citation needed|date=June 2024}}

Ibiza

|

|Azure Portal

|Website for managing cloud resources

|{{cite web

| url = https://azure.microsoft.com/en-us/blog/announcing-azure-portal-general-availability/

| title = Announcing Azure Portal general availability

| last = Welicki

| first = Leon

| date = 2015-12-02

| website = Microsoft Azure Blog

| publisher = Microsoft

| access-date = 2023-08-17

| quote = We are excited to announce that as of today, portal.azure.com (codename Ibiza), has achieved general availability (GA) status

| archive-date = 2023-02-13

| archive-url = https://web.archive.org/web/20230213054933/https://azure.microsoft.com/en-us/blog/announcing-azure-portal-general-availability/

| url-status = live

}}

Kratos

|

|PowerApps

|Software for building and sharing native, mobile, and Web apps

|{{cite web

| url = https://www.zdnet.com/article/microsoft-takes-wraps-off-powerapps-mobile-app-creation-service/

| title = Microsoft takes wraps off PowerApps mobile-app creation service

| last = Foley

| first = Mary Jo

| author-link = Mary Jo Foley

| date = 2015-11-30

| website = ZDNet

| publisher = CBS Interactive

| access-date = 2016-11-13

| quote = PowerApps -- codenamed Project Kratos -- is designed to allow business users and developers to create custom native, mobile, and Web apps that can be shared simply across their organizations.

| archive-date = 2021-02-28

| archive-url = https://web.archive.org/web/20210228160847/https://www.zdnet.com/article/microsoft-takes-wraps-off-powerapps-mobile-app-creation-service/

| url-status = live

}}

Kumo

|

|Bing

|Microsoft's set of features improving Live Search search engine

|{{Citation needed|date=June 2024}}

Marvel

|

|The Microsoft Network

|The classic version of MSN, originally as a proprietary, "walled garden" online service

|{{Citation needed|date=June 2024}}

Media2Go

|

|Windows Mobile software for Portable Media Centers

|Platform built on Windows Mobile found on portable media players

|[http://www.microsoft.com/presspass/press/2003/jan03/01-09m2glaunchpr.mspx Microsoft Unveils "Media2Go" Portable Media Player Platform: Intel to Deliver Initial Hardware Reference] {{webarchive|url=https://web.archive.org/web/20071229055011/http://www.microsoft.com/presspass/press/2003/jan03/01-09M2GLaunchPR.mspx |date=2007-12-29 }}{{Cite web |url=http://www.microsoft.com/presspass/press/2003/oct03/10-27abocomtatungpr.mspx |title=Microsoft Announces Official Name and New ODM Partners For Portable Media Center Devices |website=Microsoft |access-date=2007-04-10 |archive-date=2010-08-28 |archive-url=https://web.archive.org/web/20100828164627/http://www.microsoft.com/presspass/press/2003/oct03/10-27AboComTatungPR.mspx |url-status=live }}

Metro

|

|XML Paper Specification (XPS)

|Named after Metro by T-Mobile, a wireless prepaid service in the United States.{{Citation needed|date=July 2022}}

|{{Citation needed|date=June 2024}}

Milan

|Surface

|Microsoft PixelSense

|Table-top style computer with multi-touch touchscreen interface

|{{Citation needed|date=June 2024}}

Mira

|

|{{N/A}}

|Windows CE .NET-based technology for smart displays

|{{Cite web |url=http://www.microsoft.com/presspass/press/2002/jan02/01-07freestylemirapr.mspx |title=Microsoft Unveils New Home PC Experiences With "Freestyle" and "Mira": New Technologies |website=Microsoft |access-date=2006-07-22 |archive-date=2011-12-05 |archive-url=https://web.archive.org/web/20111205183537/http://www.microsoft.com/presspass/Press/2002/Jan02/01-07FreestyleMiraPR.mspx |url-status=live }}{{Cite web |url=http://www.microsoft.com/windows/smartdisplay/howitworks.mspx |title=How a Smart Display Works |website=Microsoft |access-date=2006-07-22 |archive-date=2009-09-07 |archive-url=https://web.archive.org/web/20090907191637/http://www.microsoft.com/windows/smartdisplay/howitworks.mspx |url-status=live }}

Monaco

|

|{{N/A}}

|Music-making program similar to Apple GarageBand application

|{{Cite web|url = https://www.zdnet.com/article/a-microsoft-code-name-a-day-monaco/|title = A (Microsoft) code name a day: Monaco|date = 13 December 2006|website = CNET|publisher = CBS Interactive|last = Foley|first = Mary Jo|author-link = Mary Jo Foley|access-date = 26 April 2015|archive-date = 8 May 2021|archive-url = https://web.archive.org/web/20210508113627/https://www.zdnet.com/article/a-microsoft-code-name-a-day-monaco/|url-status = live}}

Origami

|

|Ultra-Mobile PC

|

|{{Citation needed|date=June 2024}}

Palladium

|Trusted Windows

|{{N/A}}

|Effort to develop a small, very secure operating environment within Windows, including curtained memory, trusted input, and graphics. Project renamed to Next-Generation Secure Computing Base, and was never fully implemented.

|{{cite web |url=http://www.newsweek.com/big-secret-145809 |title=The Big Secret |last=Levy |first=Steven |author-link=Steven Levy |date=June 24, 2002 |work=Newsweek |access-date=January 30, 2015 |archive-date=June 24, 2020 |archive-url=https://web.archive.org/web/20200624182651/https://www.newsweek.com/big-secret-145809 |url-status=live }}{{cite web |url=http://download.microsoft.com/download/a/f/c/afcf8195-0eda-4190-a46d-aa60b45e0740/Security.ppt |title=Privacy, Security, and Content in Windows Platforms |last3=England |first3=Paul |last2=Peinado |first2=Marcus |last1=Biddle |first1=Peter |date=2000 |format=PPT |publisher=Microsoft |access-date=January 30, 2015 |archive-url=https://web.archive.org/web/20150402134130/http://download.microsoft.com/download/a/f/c/afcf8195-0eda-4190-a46d-aa60b45e0740/Security.ppt |archive-date=April 2, 2015 |url-status=dead }}

Softsled

|

|{{N/A}}

|Software based Windows Media Center Extender{{Clarify|post-text=Is it "software-based" or "software based on"?|date=December 2012}}

|{{Citation needed|date=June 2024}}

Springfield

|Microsoft Popfly

|{{N/A}}

|Website in Alpha testing stage providing mashup and webpages creation tools, with publishing as Rich Internet Application option

|{{Cite news

|url = http://www.zdnet.com/blog/microsoft/microsoft-popfly-yahoo-pipes-for-the-rest-of-us/452

|title = Microsoft Popfly: Yahoo Pipes for the rest of us

|work = ZDNet News

|publisher = CBS Interactive

|date = 18 May 2007

|access-date = 22 December 2010

|first = Mary Jo

|last = Foley

|archive-date = 14 July 2013

|archive-url = https://web.archive.org/web/20130714072356/http://www.zdnet.com/blog/microsoft/microsoft-popfly-yahoo-pipes-for-the-rest-of-us/452

|url-status = dead

}}

Sydney

|Bing Chat

|Copilot

|

|{{Cite web |title=Chatbots keep going rogue, as Microsoft probes AI-powered Copilot that's giving users bizarre, disturbing, even harmful messages |url=https://fortune.com/2024/02/28/microsoft-investigating-harmful-ai-powered-chatbot/ |access-date=2024-09-18 |website=Fortune |language=en}}

Wolverine

|

|TCP/IP stack for Windows for Workgroups 3.11

|Named after the Wolverine, a character from Marvel Comics.

|{{cite magazine|last1=Noss|first1=John|magazine=InfoWorld|date=2 January 1995|volume=16|number=52|page=51|issn=0199-6649|title=Big bang for the buck|url=https://books.google.com/books?id=gDgEAAAAMBAJ&q=Microsoft+wolverine&pg=PA51|access-date=21 October 2020|archive-date=9 March 2022|archive-url=https://web.archive.org/web/20220309141235/https://books.google.com/books?id=gDgEAAAAMBAJ&q=Microsoft+wolverine&pg=PA51|url-status=live}}

References

{{Reflist|30em|refs=

{{cite web|last=Foley |first=Mary Jo |title=All About Microsoft: CodeTracker A monthly look at Microsoft's codenames and what they reveal about the direction of the company. |url=http://i.techrepublic.com.com/downloads/Kaelin/CodeTracker-July2011.pdf |work=ZDNet |publisher=CBS Interactive |access-date=30 October 2011 |archive-url=https://web.archive.org/web/20111031111707/http://i.techrepublic.com.com/downloads/Kaelin/CodeTracker-July2011.pdf |archive-date=31 October 2011 |url-status=dead }}

}}