I am also on Windows 11. I re-downloaded the demo, and it works fine for me, correctly minimizing to the system tray. I have also used this plugin on at least four different computers recently without any issues.
Perhaps you could try the following steps:
- Post your system version and hardware specifications so we can compare.
- Test various related plugins by yellowafterlife. In theory, they are also created using Windows hooks, and there's no reason his would work while mine doesn't.
- Try running the game with administrator privileges.
- If you have access to another computer, test it there.
We can only figure out how to fix it once we identify the reason it's not working.