XP Firewall Commander is an easy to use control interface for your Windows XP built-in firewall. By default, Windows Firewall is turned on for all network interfaces. This helps improve network protection for new Windows XP installations and Windows XP upgrades. Windows Firewall also helps improve protection for new network connections.
XP Firewall Commander lets you add and remove exceptions for programs and services so that they can receive inbound traffic.
You may find it useful to use Windows Firewall with no exceptions when you connect to a public network, such as a public network at an airport or hotel. This setting can help protect your computer because it blocks all attempts to connect to your computer. When you use Windows Firewall with no exceptions, you can still view Web pages, send and receive e-mail messages, or use an instant messaging program.