I tried downloading Trueview 2020 again and it downloaded successfully.
The Autodesk Self-extract ran until it showed 0 seconds remaining then froze.
I clicked the "X" to close the box and received this message:
Do you really want to quit?
Extraction will stop and all unpacked files will be deleted.
I waited several minutes and nothing happened so I closed the box..
I found the "DWGTrueView_2020_Enu_64bit_dlm" folder but it was empty.
Oh well. I have Trueview 2024 installed on a win 10 laptop in my office, so no great problem.