I really do not understand what you are doing here, the simple connection is:
- DB9 male to PC Serial Port.
- DB9 female to Controller Door
- Cable should be simple 2-3, 3-2 and 5-5 pinout.
- Open KCWin32 set COM port to same as device manager Serial Port (not parallel).
If using a USB to RS232 converter, then COM port in KCWin32 needs to be same as USB COM port no.