I was using Comodo 3.0 and downloaded Shields Up Firewall tester and I denied access to it. Then ran the test 3 more times and it failed. Uninstalled Comodo and installed Online Armor. Ran the same test and denied access then when I ran the test again it denied access to even opening the file. It quarantined it. Sure Comodo might be great but I cant bother with all the settings and that pending file things. I an keeping Online Armor and it works great with my NOD32.