Online Armor - top rated firewall and intrusion prevention
Notes from ClifNotes, Dec 2007, permalink Personal Firewalls
Last month I tried out two different free firewalls: AshampooFirewall and PcToolsFirewall. I had no problems with either one. One of the readers here pointed out that I was picking the wrong firewall to try out and that neither of those did well with leak tests. Based on the recommendations, I decided to try out one of the top rated firewalls, Online Armor.
I've been running OA for about 2 weeks now with only some minor adjustments. OA has some extra protection features that monitor email and web surfing so I didn't even install those options. I simply don't want any protection in those areas. It also included some intrusion prevention software that they call "Program Guard". After using that feature for a week or so, I turned it off too. I already use WinPatrol to guard me against programs trying to perform stealthy installs on me.
I've concluded that OA is a good firewall. It works well with my system without bogging it down. Whether or not you choose to install the extra protection is up to you. If you aren't sure if you need the extra protection, I'd say you probably do need it.
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Quote from the website
Online Armor Personal Firewall - the only free firewall in the world to pass 100% of leak tests out of the box. Online Armor is a powerful personal firewall, with HIPS and a host of other security features to keep your PC clear of infections and running smoothly.
http://www.tallemu.com/free-firewall-protection-software.html