I used to use ZoneAlarm back when it was efficient and a simple firewall. I abandoned it though because of the huge impact it has on system performance. Plus there are more effective firewalls out there for security purposes.
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Online Armor is very impressive. I use the pay version because I like Advanced Mode. OA is very stable and has great security. System doesn't get slowed down by running OA either, unlike a lot of other firewalls I've tried.
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Been a longtime Outpost user and have always been happy with Outpost, until version 4.0. 2008 is just as bad unfortunately. Since 4.0 there's been nothing but lockups, hangups, BSOD, system drag, etc. The software has become so buggy and unstable...
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