==History==
Windows Fundamentals for Legacy PCs was originally announced with the [[code name]] "[[Eiger]]" on 12 May 2005.<ref>{{Cite web |title=Microsoft's Eiger Could Prolong the Useful Life of Older PCs |url=https://www.gartner.com/doc/481144 |url-status=dead |archive-url=https://web.archive.org/web/20140106163628/https://www.gartner.com/doc/481144 |archive-date=January 6, 2014 |access-date=2014-01-06 |publisher=Gartner.com}}</ref><ref>{{Cite web |last=Evers |first=Joris |date=2005-05-13 |title=Microsoft to slim down Windows XP for older PCs | Platforms |url=https://www.infoworld.com/article/2670893/microsoft-to-slim-down-windows-xp-for-older-pcs.html |access-date=2014-01-06 |publisher=InfoWorld}}</ref><ref>{{Cite web |last=Kotadia |first=Munir |date=May 17, 2005 |title=Microsoft Eiger to fight desktop Linux threat? |url=https://www.zdnet.com/article/microsoft-eiger-to-fight-desktop-linux-threat/ |access-date=2014-01-06 |publisherwebsite=ZDNet}}</ref> ("[[Mönch]]" was announced as a potential follow-up project at about the same time.<ref>{{Cite web |date=May 13, 2005 |title=Microsoft Puts 'Eiger' Thin Client Into Early Testing |url=https://www.informationweek.com/it-leadership/microsoft-puts-eiger-thin-client-into-early-testing |access-date=2014-01-06 |publisherwork=InformationWeek}}</ref>) The name "Windows Fundamentals for Legacy PCs" appeared in a press release in September 2005, when it was introduced as "formerly code-named 'Eiger{{'"}} and described as "an exclusive benefit to SA <nowiki>[</nowiki>{{bracket|[[Microsoft Software Assurance]]<nowiki>]</nowiki>}} customers".<ref>{{Cite web |date=September 9, 2005 |title=Microsoft Adds Eight Benefits and Enhancements to the Software Assurance Maintenance Offering |url=https://news.microsoft.com/2005/09/15/microsoft-adds-eight-benefits-and-enhancements-to-the-software-assurance-maintenance-offering/ |access-date=November 23, 2023 |website=Microsoft.com |publisher=[[Microsoft]] |language=en-US}}</ref>
A [[Gartner]] evaluation from April 2006 stated that:
{{blockquote|The main purpose of Windows Fundamentals for Legacy PCs (WinFLP) is to allow users running old PCs to be able to replace unsupported Windows NT Workstation v.4, Windows 95 and Windows 98 with a supported release of Windows XP (or, eventually, a version based on Windows Vista). [...] Because WinFLP will have the ability to run some applications locally —– including Internet Explorer, media players, Instant-Messaging clients, Java Virtual Machines, terminal emulators and ICA or Remote Desktop Protocol clients, and Microsoft Office —– WinFLP can be better described as a "lean client" than a "thin client.".|source=Gartner<ref>{{cite web |first=Alvin R. |last=Park, "[|url=https://www.gartner.com/doc/491598 |archive-date=2014-01-06 |archive-url=https://web.archive.org/web/20140106162016/https://www.gartner.com/doc/491598 |archive-date=2014-01-06 |title=Determining the Value of Microsoft Software Assurance]", |date=25 April 2006, |publisher=Gartner ID Number: |id=G00130974, p. |page=9}}</ref>}}
The [[Software release life cycle#Release to manufacturing (RTM)|RTM]] version of Windows Fundamentals for Legacy PCs, which was released on July 8, 2006, was built from the Windows XP Embedded Service Pack 2 codebase.<ref>{{Cite web |date=2006-09-17 |title=Windows Fundamentals for Legacy PCs |url=http://www.microsoft.com/licensing/sa/benefits/fundamentals.mspx |url-status=dead |archive-url=https://web.archive.org/web/20060917052108/http://www.microsoft.com/licensing/sa/benefits/fundamentals.mspx |archive-date=17 September 2006 |access-date=2022-05-11 |website=microsoftMicrosoft.com}}</ref> The release was announced to the press on July 12, 2006.<ref name="RTM">{{Cite web |date=2006-07-12 |title=Microsoft extends lifeline for older PCs - |website=CNET News |url=https://www.cnet.com/tech/services-and-software/microsoft-extends-lifeline-for-older-pcs/ |access-date=2014-01-06 |publisher=News.cnet.com}}</ref> Because Windows Fundamentals for Legacy PCs comes from a codebase of Windows XP Embedded, its service packs are also developed separately.<ref name="sp3" /> For the same reason, Service Pack 3 for Windows Fundamentals for Legacy PCs, released on October 7, 2008, is the same as Service Pack 3 for 32-bit (x86) editions of Windows XP.<ref name="sp3" /> In fact, due to the earlier release date of the 32-bit version, many of the key features introduced by Service Pack 2 for 32-bit (x86) editions of Windows XP were already present in the RTM version of Windows Fundamentals for Legacy PCs.<ref name="RTM" /> Service Pack 3 is the last released service pack for Windows Fundamentals for Legacy PCs.
In May 2011, Microsoft announced [[Windows Thin PC]] as the successor product.<ref>{{Cite web |date=2011-05-02 |title=Microsoft to deliver Windows Thin PC to customers by June 30 |url=http://www.zdnet.com/blog/microsoft/microsoft-to-deliver-windows-thin-pc-to-customers-by-june-30/9331 |archive-url=https://web.archive.org/web/20110503062621/http://www.zdnet.com/blog/microsoft/microsoft-to-deliver-windows-thin-pc-to-customers-by-june-30/9331 |url-status=dead |archive-date=May 3, 2011 |access-date=2014-01-06 |publisherwork=ZDNet}}</ref>
==Technical specifications==
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