Category: remote control/file access
INT 2F - INTERLNK - CHECK IF PORT IN USE AX = 5602h DX = magic value FFFFh BL = instance number (00h=any, 01h=first loaded, etc.) CX = base port address of COM / LPT port to check Return: (as for AL=00h if port in use for a redirected drive) SeeAlso: AX=5600h