Are you aware of this page?
https://groups.google.com/g/video-downloadhelper-q-and-a
If you look at the top of that page, there is a squished down area that is exceptionally
easy to miss, as you can see in my attached image #1. You need to scroll that area. It
contains several links to important parts of the VDH software. In my image #2, I've
scrolled the area to the bottom, but there are other useful links in that scrollable area.