to find the ICF for your connection, open start menu>click "connect to">right click connection you use. go to properties, and hit advanced tab. then uncheck the box, and find yourself a good free firewall, or don't use one.
here is a page that has lots of good/free ones.
as far as the built in ICF is concerned, it is easier and faster to download a different firewall and configure it than to go through all the bull of adding generic services that won't cover what you try to let have access. get zonealarm or something.