You can use the following JavaScript code in a web page to determine which versions of .NET are installed on a client PC:

<script language=”JavaScript” type=”text/javascript”>
var a = navigator.userAgent.match(/.NET CLR [0-9.]+/g);
if (a == null)
document.write( “Microsoft .NET is not installed on your PC” )
document.write( “The following versions of Microsoft .NET are installed on your PC:<br/>” )
for (i = 0; i < a.length; ++i)
document.write( a[i] )
document.write( “<br/>” )

Here is the code in action:

Share and Enjoy:
  • Digg
  • Twitter
  • Facebook
  • Reddit
  • StumbleUpon
  • LinkedIn
  • Google Bookmarks
  • Slashdot