Download FirePanel XP
FirePanel XP this is a tool designed to co-work with the built-in firewall included in Windows Operating System XP SP2 and SP1. It lets you to configure the Windows firewall according to your needs. FirePanel XP allows the user to establish the rules with which he wants to run applications.
It doesn't consume a lot of system resources and is easy to understand. runs fast and has a simple interface.
The new version of this software includes updates and bug fixes.
This is a free 30 days trial version, the price is OK but is a little high for a simple tool and not the whole Firewall. It's powerful and worth to try but is not for expert users.