X-Hacker.org- Interrupts & Ports

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        Force duplicate handle (INT 21h, 46h - FORCDUP)

        Entry:
          AH = 46h
          BX = Existing file handle
          CX = new file handle
        Return:
          CF = 1 if error
                  AX = Error Code

See Also: INT 21h, 45h Error codes

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