I got this from a google lookup to site
http://www.windowsitpro.com/Article/...588/13588.html
A. For those systems running with Service Pack 2 or above, it is possible to disable the context menu as follows:
Start the registry editor (regedit.exe)
Move to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explor er
From the Edit menu, select New - DWord Value
Enter the name NoViewContextMenu and press enter
Double click the new value and set the value to 1 and click OK
Close the registry editor
Logout and Login again
Note-I have no experience with this-I suggest you review the site and proceed only if you feel secure with it.