Restrict access to domain users

Hi, I have installed a firewall that prevents domain users to launch certain
softwares such as chat softwares. However, when a user logs in to his local
laptop, instead of logging to the domain, he is able to launch this sotwares.
Apparently the firewall can't control users that are not logged to the
domain. Is there a way in Windows Server 2003 to restrict internet access,
in a way that only users logged to the domain are able to use the internet
connection?

I do not want people logged to their local computers accessing the internet.

More Info Needed. What firewall are you using?

"Restricting internet access to non-domai" wrote:

> Hi, I have installed a firewall that prevents domain users to launch certain
> softwares such as chat softwares. However, when a user logs in to his local
> laptop, instead of logging to the domain, he is able to launch this sotwares.
> Apparently the firewall can't control users that are not logged to the
> domain. Is there a way in Windows Server 2003 to restrict internet access,
> in a way that only users logged to the domain are able to use the internet
> connection?
>
> I do not want people logged to their local computers accessing the internet.