Blocking porn may be this application's target, but it seems to arrest online access all around.
Parental Filter uses Allow and Ban lists to stop pornographic Web sites from loading on your PC. Its interface is straightforward, though it's crude and could stand some sprucing up. Initiating the program's filters is pretty effortless; simply click a button to enable either list. The control lists are kept in Notepad files for you to add or delete entries. Parental Filter uses IPs rather than domain names to sort out porn sites so as not to miss any associated links. A gargantuan list of banned IPs is included in the program.
Surfing was pretty taxing while this application was in effect, though. Page after page of clean sites had difficulty loading and eventually produced error messages. Once we disabled the ban list, the trouble ceased. Parental Filter guards your configurations with a user-defined password, although we were able to uninstall the app without it. We would like a few more parental control features, but that's the least of this program's problems. Free, yes, but unless you want to bar Internet access altogether, you'll need a program that isn't this severe.