IIS Session Timeout vs ASP.NET Session Timeout

Question

In IIS 6 (and other versions too afaik), there is a Session Timeout setting in Properties -> Home Directory Tab -> Configuration button -> Options tab. Looks like this:

And in the ASP.NET web.config there is a SessionState setting, looks like this:

<system.web>     <sessionState timeout="120" />     <!-- etc .. --> </system.web> 

Are they, by any chance, related? Do they set the same thing, or different things?

Answer 1

They are not the same. The IIS session timeout is for clasic ASP pages. The web.config one is for asp.net.

Answer 2

The IIS setting has no effect on ASP.NET sessions as far as I'm aware - these must be set in the web.config.