@@strippy Thanks for the answer. No hits in the archive found. Only one website in Italy (iz3mez) has old versions, but only up to 1830. The videos on RU-vid, where it works, all have versions after 1830. The airspy website unfortunately only has the latest versions.
I've posted a video of how to download the old version of SDR sharp , the version I got though is 1909, use the DLL from the install folder 1.5.6.0. It should work
Thanks for the new video "SDR# old version where to download". I have now installed SDRshark version 1909. The previous error "Could not load SDRSharpmerged" is now fixed. Unfortunately, I now have another error: DLL not found. I suspect it is due to Framework. Which version must be installed for this? Many thanks in advance.