Check if .net framework is installed

[patdenim]

I made a program that's going to run directly from a CD. Now I'm wondering if it is possible to check if the user has the .NET framework installed on the running computer. I want to give the user a more detailed message instead of the one that is automaticly given because that can be a bit cryptic to the user.
Is this possible?

 

[APaule]

One idea is to use the WSH and write a script that checks the registry if the framework is installed (see http://support.microsoft.com/default.aspx?scid=kb;en-us;318785) and http://support.microsoft.com/default.aspx?scid=kb;en-us;244675) and if so, start the program.
Maybe someone else has a better idea.