PM, this will be pretty hard I'm afraid, since you want to clear the cache of the browser. The way the Web works, it is difficult to do anything on the client from the server, so I don't think you can use ASP to do it for you, maybe an ActiveX object can do it. But remember that the client will always have to approve actions to be done by a webapp on his machine. Otherwise we call it hacking ;-).
There is of course a way to prevent certain pages from being cached. If that's what you want as an alternative, use a meta-tag:
<meta http-equiv="Expires" content="-1">
Hope this helps... <webguru>iqof188</webguru>