After actually RTFA here’s some highlights.
SP2 includes ability to record data to Blu-Ray Disc media.
SP2 removes the limit of 10 half open outbound TCP connections. By default, SP2 has no limit on the number of half open outbound TCP connections.
Not many, but if i did use Vista, those would be my most valued additions.
Download x86: Windows6.0-KB948465-X86.exe
Download x64: Windows6.0-KB948465-X64.exe