would have a "kbwinxppresp3fix" and/or "kbwinxpsp3fix" tag, thus allowing Allen to easily find and determine which fixes were planned for the official SP3 release to come. Microsoft publicly stated at the time that the SP3 pack was unofficial and advised users to not install it. Allen also released a Vista SP1 package in 2007, for which Allen received a cease-and-desist email from Microsoft. Windows XP Service Pack 3 was later included in Windows Embedded Standard 2009 and Windows Embedded POSReady 2009. System requirements System requirements for Windows XP are as follows: Notes Physical memory limits The maximum amount of RAM that Windows XP can support varies depending on the product edition and the processor architecture. All 32-bit editions of XP support up to 4 GB, except the Windows XP Starter edition, which supports up to 512 MB of RAM. 64-bit editions support up to 128 GB. Processor limits Windows XP Professional supports up to two physical processors; Windows XP Home Edition supports only one. However, XP supports a greater number of logical processors: 32-bit editions support up to 32 logical processors, and 64-bit editions support up to 64 logical processors. Upgradeability Several Windows XP components are upgradable to the latest versions, which include new versions introduced in later versions of Windows, and other major Microsoft applications are available. These latest versions for Windows XP include: ActiveSync 4.5 DirectX 9.0c (June 7, 2010, Redistributable) Internet Explorer 8 on Windows XP Service Packs 2 and 3 (Internet Explorer 6 SP1 and Outlook Express 6 SP1 on Windows XP before SP2.) Windows Media Format Runtime and Windows Media Player 11 on Windows XP Service Packs 2 and 3 (and Windows Media Player 10 on Windows XP original release.) Microsoft Virtual PC 2004 and 2007 .NET Framework up to and including version 4.0 (4.5 and higher versions are not supported.) Visual Studio 2005 on Windows XP versions below SP2, Visual Studio 2008 on Windows XP SP2 and Visual Studio 2010 on Windows XP SP3 Windows Script Host 5.7 Windows Installer 4.5 Microsoft NetMeeting 3.02 Office 2010 was the last version of Microsoft Office to be compatible with Windows XP. The Windows Services for UNIX subsystem can be installed to allow certain Unix-based applications to run on the operating system. Support lifecycle Support for the original release of Windows XP (without a service pack) ended on August 30, 2005. Both Windows XP Service Pack 1