The SessionStateUtility.GetHttpSessionStateFromContext(System.Web.HttpContext) method can be used by a session-state module to retrieve session data from the current request. This occurs during the System.Web.HttpApplication.ReleaseRequestState event at the end of a request. The returned session data can then be written to the session data store. If the session has been abandoned, the session data can be removed from the data store and System.Web.HttpContext, and the Session_OnEnd event can be executed.