Windows Vista Service Pack 2 RC and Windows Server 2008 Service Pack 2 RC is now available to general public for download.
SP2 Release Candidate (RC) Standalone for computers that have Windows Server 2008 SP1 or Windows Vista SP1 installed and want to update to Service Pack 2:
Five Language SP2 Standalone: for computers with one or more of the following five languages: English, French, German, Japanese, and Spanish only (other languages installed on your computer will not work).
- ISO for Windows Server 2008 x86/x64/ia64 and Windows Vista x86/x64
- x86 for Windows Server 2008 and Windows Vista x86
- x64 for Windows Server 2008 and Windows Vista x64
- IA64 for Windows Server 2008 ia64
The service pack is delivered as a single release for both Windows Vista and Windows Server 2008. There will be a single 32-bit standalone installer (302 MB to 390 MB) for both Windows Vista and Windows Server 2008. However, there will be two 64-bit standalone installers, including one which covers x64 architectures (508 MB to 622 MB) and one for Itanium 64-bit (384 MB to 396 MB)
TECH CENTER LINK:
http://technet.microsoft.com/en-us/windows/dd262148.aspx
