You may have to build a Session Manager object and store the session variables in your database. This is because the Http Session object cannot be shared. I had to build the Session Manager object to interface the old asp with the new asp.net pages, even though they both existed under the same project. Search of MSDN "How to share session state" gives you this article - http://msdn.microsoft.com/library/en-us/dnaspp/html/converttoaspnet.asp