Sygate Personal Firewall for Windows

Sygate Personal Firewall is free for personal use and protects your computer from hackers, trojans, and DoS attacks.

Full-ICS support, protocol driver level security, enhanced logging and other features are just a few of the features.

Sygate Personal Firewall is an invisible, configurable, and enforceable rule-based security policy that runs in the background of your computer. You can customize policies regarding applications, trusted IP addresses and ports, protocols, and scheduling to meet any network configurations. It is designed to deliver top-notch security without compromising your computing power.

Sygate consumer firewall products were discontinued on November 30, 2005, but you can still download this version for free.