One trick in setting the session time out for Web applications in IIS 6.0.
you may notice that no matter how long you set the session timeout to be, it will timeout after 10 or 20 minutes.
The reason for this is that by default web applications are using an application Pool ( new feature in IIS 6.0 that wasnt there in the IIS 5.0).
The application pool- to save resources- will shut down the worker process after being idle for a certain amount of time( default 20 mins)
It will do so regardless of any session timeout in any web application using this application pool.
To change this, Point to the application pool used by the web app in question, right click “properties” goto “performance” tab and under the “Idle Timeout” panel, either change the time period or uncheck the “shut down after…”
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