Download Agnitum Outpost Firewall Free
Agnitum Outpost Firewall is overall a free software and a very powerful one. It has no limitations and is one of the best options for a Windows firewall.
Agnitum Outpost Firewall improves its performance with each new version and update and sometimes its even better than any firewall softwares that are not for free. its recommended, as with any other firewall, to be use together with an anti-virus of your preference for a better protection of your system.
Its compatible with many operating systems, from Windows XP toVista.
Its interface is really neat and easy to use for anybody because it configures itself.