The Windows Firewall was first introduced with Windows XP Service Pack 2 (SP2), and was later added to Windows Server 2003 as part of Service Pack 1 (SP1). The Windows Firewall was a big improvement over its predecessor, which had no built-in, host-based firewall at all. This initial release was very basic and included only the most fundamental functionality. With the advent of Vista and Windows Server 2008, the Windows Firewall has been given a substantial makeover and is now known as Windows Firewall with Advanced Security (WFAS). Keep reading for a description of the new features in WFAS as well as a step-by-step configuration example.
Here is a list of some of the most important new features in WFAS[...]
Windows, Firewall, OS Firewall