By default, Windows® 7 includes an Inbound Firewall. Their system supports an Outbound firewall that will not work by default. ZoneAlarm's #1 Firewall has taken Firewall technology a step further by automatically including Inbound, Outbound and the highly specialized OSFirewall™. The OSFirewall™ is crucial since it guards suspicious behavior all the way down to the operating system level. This technology is what sets our Firewall apart from the rest.

Windows 7 IE8 only blocks known dangerous websites and downloads. It will not block new sites and downloads, or prevent drive-by downloads and browser exploits from harming your PC. All of these important browser security features plus more are included in our award-winning ZoneAlarm® Extreme Security or ZoneAlarm® ForceField™.

An independent study by av-test.org found that even the best antivirus engines miss over 30% of 'dynamic' (new) virus threats. This is true for any standalone antivirus solution, from Microsoft or anyone else. The ZoneAlarm OS Firewal™ was built to combat this threat - it catches suspicious and unauthorized activity on your PC, thus protecting you from dynamic virus threats.