I can tell you that 1.17 will no longer register when run in WINE. Cause that was what I was using for years. I had it set to not update, it did it anyway and of course later versions wouldnt run in the version WINE I was using for 1.17. Back then had nothing to do with defeating DRM, it was that Kindle4PC newer than 1.17 simply wouldnt run in WINE. Oh I think there was some complicated trick to get 1.19 working not sure the point of doing that since it wasnt much different than 1.17.
No idea if 1.17 still can work in windows, cause frankly I am not booting windows just to read/save a book. I run windows one time a year cause frankly its a PITA trying to get tax software running in WINE for a one time use. I did that one year and took me 3 days. Booting an unactivated win10 or win11 once a year not big deal. Better than wasting 3 days.
As I posted, I figured out way to use later version WINE and a current version Kindle and use automatic screenshotter to backup if I want DRM-free backup. It works for me, your mileage may vary. Not locked into old versions required by A.A. plugins. I really am not interested in battling Amazon trying to continue using old version when they obviously are going to extraordinary lengths to prevent it. Eventually they simply wont offer books in the old formats no matter what tricks are used. Leave that battle for others wanting to tilt at windmills. I think DRM is pretty dumb as it will do nothing to prevent actual piracy. But the world is what it is.
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