If you want to know about the different versions of CLR installed on your machine, use the CLRVer command line tool. It shows all the installed versions of CLR as shown below –
As you can see my laptop has the CLR Version 4.0 installed.
If you want to know about the different processes running on your machine, that’s using CLR use the –all switch. It shows the process id, name and the CLR version that it used by the process.