INT 2fH b702H: Get APPEND.EXE Version

                                                         Compatibility: 4.0+ 
 Expects: AX    b702H
          ──────────────────────────────────────────────────────────────────
 Returns: CF    Carry Flag clear (NC) if no error
          AX    ffffH means this version compatible with DOS 4.0+
          ──────────────────────────────────────────────────────────────────
    Info: Returned values other than ffffH indicate some version older than
          that of DOS 4.0.

          The interface to APPEND.EXE has not changed, up to and including
          DOS 6.0.

See Also: INT 2fH b7xxH: APPEND.EXE Functions
          INT 2fH: Multiplex Interrupt
          DOS Functions
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