I wasn't commenting and I'm sorry you took it that way. However I see how
you could have gotten that impression from my response and I apologize. I
thought you missed the link.
As to the rest, if you check my posts around these boards, for the most
part, I post step by step instructions. In the case of Group Policy Editor,
a little education is required to work with it and that Knowledge Base
Article does a better job of giving an overview and explaining the
procedures than I could or have room for here. Many users that I have
directed to that article have done quite well with it for exactly the kind
of procedure you are attempting. There are implications for everything you
do in the policy editor which is why I thought and still think the article
is a good primer and good jumping off point.
For a simpler approach, there are third party applications with which you
can accomplish this and not as risky as Group Policy Editor, NetNanny for
example,
www.netnanny.com.
Again, I apologize for my seemingly flip response, that was not my intent.