it’s an external tool.
You can fire up the tool directly from the File Explorer
You can do that quickly by selecting two files, then right click → Send To → video-compare
Here is how this integration works:
To get video-compare to appear in the Send To field you will need to open the send to folder, which you can access by typing shell:sendto in Run (Windows + R), then simply make a shortcut to video-compare.exe
