AutoStartSession is a Boolean property that indicates a new HTTP session should be created when a persistent HTTP session does not exist in SessionList. 

AutoStartSession is used when a session for the HTTP client connection is executed, and SessionState indicates that persistent sessions are maintained on the HTTP server. 

AutoStartSession allows CreateSession to be called when an HTTP session cannot be found in SessionList containing the GSessionIDCookie for the client IP address. 

Even when AutoStartSession is True, CreateSession will not be called when OnInvalidSession indicates that the session should not be allowed to continue execution. 

The default value for AutoStartSession is Id_TId_HTTPAutoStartSession as assigned in the Create constructor.

CreateSession 

GSessionIDCookie 

OnInvalidSession 

SessionList 

SessionState 

Id_TId_HTTPAutoStartSession