A couple of days ago I installed SpyShelter Firewall and so far I really like it but then I am somewhat of a novice when it comes to firewalls. I did notice after installation that the Windows 7 firewall was still on and I am confuswed as to whether this is correct as SpyShelter FW seems to work okay with the Win 7 FW turned off. Does SpyShelter Firewall replace the Windows 7 firewall or does it use it by enhancing it. Any positive or negative comments would be appreciatted about this firewall. It certainly doesn't slow down my computer. I have it set for `Auto Allow - Medium security" Thanks .