Int 7F Fn A2  - Alloy Mw386 - Get User Privilege Level                     [N]

   AH = A2h
   DL = user number (FFh = caller)
   DH = machine number for user

Return: CF clear if successful
       AL = privilege level
       00h supervisor
       01h high
       02h medium
       03h low
   CF set if invalid user number

See Also: AH=A1h,AH=A3h