What are the steps to repair the .Net framework (2.0 / 3.5) on Windows XP?

Question

I have 2.0 SP2 and 3.5 SP1 installed on a windows xp machine. What are the steps to repair those frameworks?

Answer 1

See How to repair an existing installation of the .NET Framework -- the procedure described there works fine with a downloaded copy of dotnetfx.exe for the affected version.

Answer 2

This may be helpfull too:

http://blogs.msdn.com/astebner/pages/8904493.aspx