>I haven't seen that but it is possible. It would need to be a custom implementation unless IIS has a feature somewhere I missed.
>
>How would the server know the browser doesn't support cookies? Unless it has a database of all the browsers it knows that doesn't support them.
>
>
>If you find more information on that I would love to know.

ASP.NET exposes Request.Browser.Cookies, which let's you know if the browser supports cookies. The book I am reading indicates that if the browser does not support cookies, ASP.NET automagically supports session state by passing the SessionID in the URL.