I have created a dll that assigns a guid string of 81 characters to a particular client that logs in on my website. Question is, once they hit the landing page that the dll returns after a successful login, how do I pass that CSID GUID from page to page to authenticate the user on each subsequent page they may visit in cold fusion? Any ideas? I could put something like http://www.blah.com?#url.csid# on the end of end link within the landing page, possibly. Is there some way better? The string looks something like this. Thanking You in advance. http://www.joebob.com/cgi-bin/ClientInfo.dll?CSID=1C979DD647694817AE21F53487BC4372HG91D755CC134E209E74408E2EEC05F31203X1DO1BB8R51WW1941 _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp