About the Firewall
Forefront Threat Management Gateway (TMG) includes the Microsoft Firewall service, which is extended by application filters. One of the application filters that are installed during setup is the Web Proxy Filter, which, in turn, is extended by Web filters.
This section includes the following topics:
The Web proxy includes the Forefront TMG cache, discussed in About the Forefront TMG Cache.
Build date: 7/12/2010