…ok, just to make this clear once again, there are two problems described here.
1st problem: The reason why ahkohxet’s file “simclient” is doing nothing is because after being unzipped from the download, it’s not yet an executable file, that’s what I wrote in my first post. Instead, its file type is a simple text file at first, it’s shown in the macOS Finder as being a “TextEdit” file. You can easily turn it into an executable file though by running the command “chmod 755 simclient” in Terminal. Afterwards, it can be executed by running it as administrator (right-click and “open”). From that point on, yes, you can run it every time by doing a simple double click. So that’s the easy part.
Now comes the second set of problems. The now executable file “simclient” calls a lot of *.dylib and *.dll files in the process, but all of them (or at least a lot of them) are prevented from being started by macOS. For each one of those files, you receive an error message box saying that macOS has stopped it from being opened due to the fact that macOS could not verify its developer. In these error message boxes, you only have to choices: a) trash the file immediately, or b) abort it from being started. Of course, none of these two choices helps. There is no “open the file anyway” choice! In the end, this means that by clicking through all those check boxes (no matter what choice you pick), all these necessary files are not being opened, so of course the whole application is not able to function at all! So only the “simclient” file itself can be launched, but all other files won’t open.
And like I already wrote, installing the latest version 3.1.3 of the DotNet CORE runtime does not help either.
Please fix this! Thank you so much in advance!