I use the freeware version. It does everything I want and expect of it. The pro version is very complex in its use/configuration. I don't see the necessity. I have a home network and cable modem but the pro version is just too unnecessarily complex for my needs. The pro version was designed more for offices and larger networks.
Thank you for the suggestion!
(Now I just have to figure out how to sneak it onto my son's system when he isn't looking!)