Just some feedback…
I just installed FxSound for the first time on my Win11 Pro 23H2 system. I really wish I’d known that it was a standard Windows application, or I would not have used the Microsoft Store to obtain it. But use the Store I did.
Version 1.1.16.0 was installed, even though 1.1.20.0 is available.
I checked for updates, and it downloaded 1.1.20.0. But the updater failed, claiming a digital signature mismatch or some such thing.
Then I manually downloaded 1.1.20.0 and did a full binary comparison of that file to the file that had been automatically downloaded to \Update earlier, and found the two installers were identical.
The 1.1.20.0 installer worked fine when I ran it manually.