How Can I Simulate Double-Clicking A File To Open It In The Default App Without Installing Default App?

[dudefromthebronx]

I have an app written with Visual Studio 2013. The app has code for opening a file using the standard OpenFileDialog and also has code (AutoOpenFile()) for opening a file when a user double-clicks on a file that is handled by the app. I have not yet created an installer for the app, so I won't be able to test it's AutoOpenFile() code...unless there is a way to simulate the process of auto-opening the double-clicked file without actually installing the app on my PC. Anyone?

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