I have a Webhandler which generates an image on request in my asp.net Project. But if the user directly access the resource, it won\'t trigger the session start Event in the Gl
The Session_Start event is trigerred whenever some server side handler attempts to either read or write to the session. You might try decorating your handler with the IRequiresSessionState marker interface:
public class MyHandler: IHttpHandler, IRequiresSessionState
{
...
}