Int 6F Fn 08 - 10net - Unlock Handle [N] AH = 08h BX = file handle AL = mode 00h unlock all 01h unlock record at CX:DX Return: CF clear if successful CF set on error AX = error code (see also AH=00h) 0002h file not found See Also: AH=07h,AH=0Fh,INT 21/AH=5Ch