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Is there a universal (all windows OS) way to associate a custom extension to a new program for the current user on windows ? (coded in c#)

The closest solution I found is here: Associate File Extension with Application

but it does not seem to work for windows 8.1

losange
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    What does *does not seem to work* mean? Was the application that made the change an x86 or x64 app? – rene Nov 03 '16 at 16:46

1 Answers1

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I have put a solution here for windows 10: Associate File Extension with Application

It can be easily adapted by creating missing node such as ApplicationAssociationToasts.

sofsntp
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