|Microsoft Internet Security and Acceleration Server 2000|
Application filters work with the Firewall service to intercept and process data. Application filters can access the data stream or datagrams associated with a session within the Firewall service. The filters are registered with the Firewall service and act according to events detected by the service. An application filter can perform protocol-specific or system-specific tasks, such as authentication and checking for viruses.
This section contains the following topics, which are best read in sequence: