Microsoft has released a new version of Windows XP called Service Pack 2 (SP2). All ZoneAlarm products (5.1 and higher) are compatible with XP SP2.

SP2 includes the new Windows Firewall, which monitors and blocks inbound attacks only. The ZoneAlarm family of personal firewalls provides multiple layers of protection to stop hackers and other inbound threats, and prevent spyware from sending out your personal data all in an easy-to-use interface. Learn More