It depends on the requirement of the user. Best for 1 is not best for all
You can try to use what is best from the test done by some researchers (free and commercial firewall software) :
I am using ZoneAlarm Anti-spyware firewall.
It is really a resource hog and takes over a minute to load AFTER all the other items start up at system launch.
The free version I was using before was way faster and consumed less memory.
I am wondering if any of you know what is the best software based firewall, either free or fee. And which ones are you using?
I will eventually be getting a router, but really don't need one yet.
Thanks in advance