# // PerformAction < PCHAR Out : WR, ULONG Len, PCHAR In, ULONG Rq_flags > -> ULONG
=
  ULONG Result = SysPerformAction (Out, Len, In, Rq_flags);

  if (Result == NO_ERROR)
  =
    PrintString ("All done." "\n");
  .
  else 
  =
    HandleError (Result);
  .

  return Result;
.