Thanks, Paul.

Yeah, ideally session_end in global.asax, but two issues:

1. Would it fire even if there was a custom exception handler in place?
2. My understanding was that session_end was unreliable. Is that the case?

>>(Using framework 2.0)
>>
>>How do I trap a Session timeout exclusive of any other exception? The client site I'm at requires the use of a custom exception handler but it's default behavior doesn't work for our app when it comes to timeouts. So I need a mechanism that ONLY traps session timeouts (or, ideally, an injected Abandon) without interfering with any other exception (a passthrough).
>>
>>Ideas? Thanks.
>
>Are you looking for Session_End in the global.asax file? It depends on what you mean by trapping a session timeout, though.