Sorry about the delay with everything. You look like you are making really great progress!
Try an older version of He-LaserScan ... like V6 or V5 (V) . Look in the software downloads and narrow it down to the files starting with "H".
Like this link here:
https://he-laserscan.de/include.php?...tries=0&order=
You can find older versions in the list. I don't see V6 there however V5 is there. You will need to copy the OLSD.MLD driver DLL to the He-LaserScan program folder and name it "ML_Driver.mld" in order for He-LaserScan to recognize it and load it.
Try the driver attached to this message. It should work. My files are a mess on my hard drive as I spent too many late nights trying to sort out crashing or this or that. I just tested it out with a V4 board it it appears to work OK.
I am working on the Serial Port version of the OLSD drivers. I just don't have a lot of time to spend on it.