Some Software Firewalls might provide such feature.
Problem is that whatever you do on the computer clever kids (or their
computer wiz friends) can find away around it.
If the Router has fix timing and good password it would apply to all the
computers chosen without a need to do any thing on the computers.
Jack (MS, MVP-Networking).
"ChrisOfTheOT" <NoSpam@newsgroup> wrote in message
> Thanks for the reply Jack. I was hoping for an option to click on computer
> A and 'Allow' or 'Block' (or something) from one of the Vista Network
> features. Naive, I suppose...