With SAS 9.2 Maintenance 2 we now have support for Windows Server 2008 (in addition to what we already had for SAS 9.1.3).
This 9.2 Maintenance release also has various fixes and improvements not only to the SAS Foundation products, but also other products such as SAS Enterprise Guide 4.2 and SAS Add-In for Microsoft Office 4.2 (both now labeled 4.22 in Help->About, for those folks who are counting the internal numbers).
How do you get it? Follow the instructions on the maintenance page (under "Where do I go from here?"). (It's not like a hotfix download; it's more like a "refresh" of your SAS software order.)