title: Determine framework (CLR) version of assembly
body: <p>From the command line (or by any means really), how can I determine which <a href="http://en.wikipedia.org/wiki/Common_Language_Runtime" rel="noreferrer">CLR</a> version a <a href="http://en.wikipedia.org/wiki/.NET_Framework" rel="noreferrer">.NET</a> assembly requires? </p>
  
  <p>I need to determine if an assembly requires 2.0 or 4.0 CLR version.</p>