While I have you all thinking about firewalls, let me go ahead and ask this. As for the software firewall, I have read nearly 100% of reviews say that Windows Firewall is the worst protection of all my choices...that I should have Comodo or ZA. However, I took some tests and allowed my system to be hit with everything they could throw at me, and I passed all tests with no trouble. Is that not to say that Windows Firewall is not as bad as all that?
Edit: Well...that is not entirely accurate. I passed the ports tests and the trojan exploits, but I got messages back from both sites that say that my browser is leaking referrer info, and if I have my cookies set to block everything, I only pass by 50%. That is the only exploit I have, but that is remedied with Firefox. Firefox has some of its own issues, so I do not use it exclusively.
Here's where I went:
http://www.pcflank.com/about.htm
https://www.grc.com/x/ne.dll?bh0bkyd2