NT Client control panel/display restrict

Use a policy. The policy editor will allow you to control what you want. Plenty of tips have been posted on how to do this. I don't have the time to repeat them right now, sorry.

You can also change the permissions on specific cpl files in c:\winnt\system32 so that end users cannot access items in the control panel.

I agree with OVERLOADED. You should create a policy to lock down the settings. You can lock down everything from DISPLAY to NETWORK. If the desired option is not present then you can create your own option that corresponds to it (WINNT MAG wrote a number of articles for doing this).
You can lock down by machine name, user account, group. Don't forget that if you planning on locking down both NT and Win9x user you import the correct adm files.
The saved policy gets placed in the netlogon directory.

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