Your first assumption is correct. There is no way for the server to know when the browser closes, since the connection has already been severed.
Various workarounds have been suggested, like using an onclose event in the browser, but of course these usually aren't 100% successful. From: "scaevola637" [EMAIL PROTECTED] I dont think it does, but am just crurious. If it does know, should not sessionend event (or sessionabandon) fire? [Non-text portions of this message have been removed] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/AspNetAnyQuestionIsOk/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/