This has already been reported before on this post, but i'd like to reminder that this bug persists. After entirely disabling DOpus archive support and everything related to .zip, it still tries to open DOpus instead of opening WinRAR or 7Zip. Since DOpus archiver is disabled, it just duplicates the current window.
This bug persists since DOpus 13.15.3 up to latest betas. 13.15.2 works fine. Already tried resetting DOpus and reinstalling it on another computer, nothing seems to work. Tested on both Windows 11 24H2 and 25H2.