show which .NET frameworks are installed
dotNETInspector allows you to easily determine which versions (and service packs) of the .NET framework are installed on the local PC.
dotNETInspector Portable works best with the PortableApps.com Platform
doTNETInspector shows you which version of the .NET framework are installed on the current PC and which service packs of each version are installed. This can be useful for determining which versions you need to add for a given piece of software and to determine if a given portable .NET app will run.