The following won't install. There is no error code or reason given.
Microsoft .NET Framework 2.0 Service Pack 2 Security Update for Windows
2000, Windows Server 2003, and Windows XP (KB974417)
Microsoft .NET Framework 3.5 Service Pack 1 and .NET Framework 3.5 Family
Update for .NET versions 2.0 through 3.5 (KB951847) x86