Thanks a lot Timo! Today the link in the list of installed programs is there and a tile too. All it took was apparently to restart Windows after buying the program. By the way, in my search for an icon I saw in "Bibliothek" that I acquired (bought?) Diarium in November 2017. I wonder what it looked like then. Obviously I wasn't convinced then and stuck with DavidRM journal (excellent app at the time!). Now, with the help of AI, I am working on importing over ten years' entries into Diarium.