I've been using an older version for years. I did try to update a year or 2 back and had issues. The newer version was really buggy. I wrote the author who never replied.
The program has steadily been going downhill. If you want to use it, find an older copy and test it in a VM first. Avoid the newer ones. I don't know which older version to recommend. I use 4.5 but I'm not going to recommend it. Find others who are using an older version and see what they say.
I tried to install the latest version in a VM and it installed. I had to decline 2 extra apps when going through setup. Then a 3rd app wanted to be installed too. I took a screen shot. At this point, it had already installed something else that Windows Defender didn't like...