INT 33 - LOGITECH MOUSE - GET PARAMETERS AND RESET SERIAL MOUSE AX = 246Ch ES:DX -> parameter table buffer (see #03190) Return: AX = FFFFh if driver installed for serial mouse SeeAlso: AX=0000h,AX=256Ch/BX=0000h,AX=256Ch/BX=0001h,AX=256Ch/BX=0003h