One user on the company network is a wanna be hacker and a pita! Is there
a way to stop him removing the Netware 4.90 SP2e client and to stop him
fiddling with the client properties?

For several reasons he needs to remain a Windows XP 'administrator' class
user, so I cannot make him a 'limited' user. If it helps, NIS 2006 is
installed with Parental Controls. I can remove the Add/Remove Programs
applet from the control panel but he'll probably not take too long to find
the .cpl file. I'm getting a bit desperate with this and would really
appreciate a bit of assistance, as you can imagine!