Zone Alarm Security SuiteΒΆ

Stay clear of Zone Alarm security suite. The standard freeware Zone Alarm firewall should be fine. The security suite like many other packages has tried to cram too much into a single software package. I have found it to be unstable until it was updated, the updated version has been fine until I discovered it was locking up my system after conflicting with other software. The software will get better but at the moment I would not recommend it.

Brian the pig
Try the free version of Kerio Personal Firewall - apparently it's better than all the expensive cometition and I have no problems with it.
I favor Zone Alarm, but thats my personal preference. Any firewall is better than no firewall.