This is the redistributable package for Windows users to be able to run .NET programs. This afternoon, Microsoft unveiled a slate of new enhanced releases, including an updated .NET Framework 3.5 SP1 ...
Microsoft .NET Framework 3.5 Service Pack 1 is a full cumulative update that contains many new features building incrementally upon .NET Framework 2.0, 3.0, 3.5, and includes cumulative servicing ...