Default apps and open with files

In the Start menu
search for "default
select "Default App Setting"
click on "Choose Default Apps by file type".

Look through the list to find the file types

https://askleo.com/how-do-i-change-the-default-...

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Have you read my post? I already tried that. The file association default app wont work because .cbr is not listed in the list. And .png when I change the application to open it with adobe photoshop is not included in the list of default apps. But it works with .jpeg just in .png

Sorry, I didn't get that from your posting, I see it now.

On my machine CBR is there, unassigned ... (go figure)

This similar question has a couple of (strange) suggestions ...

https://superuser.com/questions/1080453/adding-...

This is aimed at developers:
https://msdn.microsoft.com/en-us/library/window...(v=vs.85).aspx

That probably won't help. But it gives me an idea. Try asking your question in the Technet and MSDN forums. There are program developers there, they may be able to help you with your problem

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