So if I understand, you seem to be able to send and receive signals using MediaLab and your equipment, even though your computers have no actual ports and communicate using only virtual reports? Is that correct?

Furthermore, you are still trying to figure out how to use the comport.txt and/or the <value:location:duration> in the parameters field to control the receiving and sending of ttl signals. Is this the primary unresolved issue you still have?

Please tell me the full version number (i.e., 20xx.x.xxx) of your copy of MediaLab. You can find it by opening MediaLab and selecting Help>About MediaLab from the main menu bar.