Since you are a member of the Comodo forums why not use their firewall? ???
You can tweak some of the settings like stealthing ports and using their “trustconnect” function.
Do a custom install and untick everything on the first screen.
The link is for the stand alone firewall. Cool. 8)
http://download.comodo.com/cis/download/installs/2000/standalone/cav_installer.exe 