|Microsoft Internet Security and Acceleration Server 2000|
A session filter is created and attached to a session when the Firewall service detects an event for which the application filter has registered. By being attached to the session, the session filter can receive notification events and react to them. For example, a session filter could react to a notification event by placing a data filter on the session data.
Each session filter is represented by an FWXSessionFilter object implementing the IFWXSessionFilter interface.