Hello W.Otto, how are you?
I am an independent consultant and user like you!
I'm happy to help you!
To select Zoombrowser from the "Open with ..." context menu follow the steps:
> Right-click on the file you want to create the link
> In the context menu, click on "Open with"
> Click on the option "Choose another application"
> A window will open with the title "How do you want to open this file?"
> Click on "More apps"
> Scroll the options to the end, and click on the option "Search for another application on this PC"
> Go to "C:> Program Files (x86)> Canon> Zoombrowser EX> Program> Zoombrowser.exe" and select the executable
Let me know what happened!