INT 33 - MS MOUSE v6.0+ - DISABLE MOUSE DRIVER

	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
SeeAlso: AX=0020h