I'm trying to figure out how to PROGRAMMATICALLY disable the Task Manager
while logged in as a "non-administrator" user (only belongs to the "Users"
group).

I know I can programmatically disable the Task Manager by having my app
write a 1 to the registry key
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System.  
Unfortunatley this only works, though, if the user who is running the app is
logged in as an Administrator.  When I try to run the app as a just a regular
"non-administrator" User I am not able to write to the registry!

So... Is it possible to do this?  If so how?