http://ecn.channel9.msdn.com/o9/c4f/images/1069401_100.jpg Over at Code Project, Jeff Atwood, posted a rather neat article on a Captcha control.  A Captcha is a way to help prove you're a human attempting to do something rather than a computer.  There is are a few great articles on Human Interactive Proofs out there if you're interested in more reading. Jeff talks about using HttpHandlers and HttpModules to do the image creation.  He also gives a .Net 1.1 and 2.0 framework version.  It includes a time out and even hides the actual text of the Captcha outside of the viewstate, since we all are aware the viewstate can easily be decoded. en Fri, 24 May 2013 10:36:26 GMT Fri, 24 May 2013 10:36:26 GMT Rev9