|Microsoft Internet Security and Acceleration Server 2004 SDK|
The ISA Server 2004 consists of the Microsoft Firewall service, application filters, the ISA Server Web proxy, and Web filters.
The ISA Server 2004 firewall provides secure network address translation (SecureNAT) to enable NAT clients to connect through ISA Server.
This section includes the following topics:
The Web proxy includes the ISA Server cache, discussed in About the ISA Server Cache.