I have an web application that needs to be able to redirect to a completely different web site the user will enter information on the web site. The web site will process the information and return a result back to a generic web site. How do I do this and remember what session the user was? I can pass any number of items in the query string and that same query string will be sent back to the generic site and the generic site will read this and redirect to the proper site.

The reason we have the generic site in between is because there will be serval different web sites e.g. www.A1.com www.A2.com.

The flow will work like this www.RequestSite.com to www.ReceivingSite.com to www.GenericSite.com back to www.RequestSite.com. Then it has to remember the session and process any other information in the query string.

Any ideas?