Filseclab Personal Firewall

Product: Filseclab Personal Firewall Professional Edition 3.0.0.16
Company: Filseclab 
Website: www.filseclab.com
Type: Free
Requirements: Windows 2000/XP

Filseclab Personal Firewall Professional Edition is one of the best free firewalls around, it is not only very easy to use, but also very powerful. It can prevent most attacks from worm viruses and Trojans, it can also block some main Adware and Spyware.

It offers double filter systems for double-layer protection. The digital signature verification can be set to automatically trust the well-known program manufacturers.