I am running ZoneAlarm on my PC. After installing XP SP2, is Windows Firewall automatically running as well?
If you are running a ZoneAlarm product (version 5.1 or higher), ZoneAlarm will disable Windows Firewall upon installation of XP SP2 so that the ZoneAlarm product is the only firewall running. This process was recommended by Microsoft because of the potential negative side effects of running two firewalls at the same time. Please see question #8 for more information on running two firewalls concurrently.