Int 17 Fn 99  - Alloy Ntnx, Mw386 - Get/set Printer Mode                   [N]

   AH = 99h
   AL = mode
       00h NTNX compatibility
       DL = NTNX printer number (see AH=88h)
           (FFh = task's current logical LPT1)
       DH = mode
           bit 0: get mode if 1, set mode if 0
           bit 1: private ("attached")
           bit 2: direct instead of spooled
           bits 3-7 reserved (0)
       01h MW386
       DX = MW386 printer number
       CL = mode (as for DH above)

Return: AL = status (see AH=81h)
   DH = mode (bits 1 and 2 set as above)
   DL = printer owner's user number if not spooled