Int 33 Fn 001F  - Ms Mouse V6.0+ - Disable Mouse Driver                    [M]

   AX = 001Fh

Return: AX = status
       001Fh successful
       ES:BX = INT 33 vector before mouse driver was first installed
       FFFFh unsuccessful

Notes: restores vectors for INT 10 and INT 71 (8086) or INT 74 (286/386)
   if you restore INT 33 to ES:BX, driver will be completely disabled
   many drivers return AX=001Fh even though the driver has been disabled

See Also: AX=0020h