Valery,
Unfortunately, if you do not need the "Correct" version of the software, then antivirus detection (in particular, Windows defender) for "Medicine" is a normal phenomenon. Although there are also viruses among medicines, in this case you take the risk. I can only give links to 3 trackers, where you can search for version 11, but it is outdated for a long time, so the choice will be very meager: