Int 4F Fn 8200 - Common Access Method Scsi Interface Rev 2.3 - Installat [d] AX = 8200h CX = 8765h DX = CBA9h Return: AH = 00h if installed CX = 9ABCh DX = 5678h ES:DI -> "SCSI_CAM" See Also: AX=8100h,INT 4B"Common Access Method"