I cannot connect to the neuroscan device to send markers

My lab has changed to a new computer and I want to use it to connect to the neuroscan device for EEG experiments. The neuroscan device is connected via a parallel port, but the new computer’s motherboard does not have one, so we installed a parallel-serial converter card ourselves. I have downloaded the InpOutx64.dll and InpOutx32.dll files and put them in the same folder as the experiment program, following the instructions from Communicating with external hardware using PsychoPy — Workshops for PsychoPy 2023 2023. I also changed the serial port number on the new computer, but it still cannot send markers when running the psychopy program (the same experiment program can send markers on the old computer in the lab). How can I solve this problem?