Disable Shut Down Command

Title: Disable Shut Down Command
What is this: This trick prevents users from shutting down your computer (good if you have a net cafe)
Valid for: All Windows
Registry Keys:
System Key:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
User Key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Changes:
Create new DWORD value called "NoClose"
value=0 shutdown enabled
value=1 to shutdown disabled