XP Smoker's Firewall control allows you to control what programs are allowed access through the Windows XP SP2 (Service Pack 2) firewall.
You can add an .exe (executable file, program file) to the firewall to give it permission.
You can also remove programs to take permission away from them, therefore the firewall will not allow these programs to access the internet.
It is a good idea to allow XP Smoker access for the internet optimizer to work, for purchasing XP Smoker, reactivating XP Smoker, and using the IE SPYAD updater.
If the Firewall Control does not work, you may want to upgrade to Windows XP SP2 (Service Pack 2)