How do I detect what .NET Framework version is installed on a machine?

posted by  jhorra (5)  15 months ago (blogs.msdn.com)

I see this question asked again and again on various newsgroups.  After picking some of the BIG brains I work with here are two methods you may want to consider:

Method 1:

1.) Under HKLM\SOFTWARE\Microsoft\.NETFramework\policy\ check to see if the version you want is installed (for example, look for the v1.1 folder and 4322 for the version number to detect the released version of V1.1)