The operating system provides many ways to take away permissions for certain users.
If you create a new user and only give that user "user" rights Acad won't properly launch.
Or it can be as simple as removing the shortcuts in the users desktop and start menu and not telling them acad is installed.
Just some ideas.
It only takes 20 -30 minutes to uninstall and re-install.
John Postlewait
IS Department
George Butler Associates, Inc.