I assume you are trying to block certain sites, i.e. keeping your kids from looking up porn. If this is the case, a real easy way of doing it is modifying the hosts file. Open up c:\windows\system32\drivers\etc\ and you will see the hosts file. There is also an lmhosts. This will do the same thing, but hosts is cleaner. Open this file with notepad. At the bottom of the file, you will see the example: 127.0.0.1 localhost Add the following: 64.233.167.104 www.siteyouwanttoblock.com Now, anytime someone on that computer goes to www.siteyouwanttoblock.com, they will be brought to 64.233.167.104 (which is google.com). You could change the ip address to whatever site's ip you want. Basically, you are overriding the DNS. Hope this helps!