[Microsoft .NET Framework 4]

Silent install, repair and uninstall command lines for the .NET Framework 4, from Aaron Stebner's blog:

http://blogs.msdn.com/b/astebner/archive/2010/05/12/10011664.aspx

Really, anything you want to know about the deployment, cleanup, or troubleshooting of any version of the .NET Framework, Aaron's blog has the definitive answers.