Microsoft Windows* Server 2003 Microsoft Windows Server 2003 x64 Edition* Microsoft Windows Server 2008 Microsoft Windows Server 2008 x64 Edition Microsoft Windows XP Microsoft Windows XP Professional x64 Edition Microsoft Windows 2000 Microsoft Windows Vista Microsoft Windows Vista x64 Edition Microsoft Windows 7 (Release Candidate) Microsoft Windows 7 x64 Edition (Release Candidate) Microsoft Windows Server 2008 R2 X64 (Release Candidate)