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Home/ Questions/Q 6531795
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Editorial Team
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Editorial Team
Asked: May 25, 20262026-05-25T09:55:17+00:00 2026-05-25T09:55:17+00:00

I have a WinForms application that relies on a class library DLL. Inside the

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I have a WinForms application that relies on a class library DLL. Inside the class library there is a method that opens a file. While working inside Visual Studio IDE if I provide the wrong file path I get a FileNotFoundException as expected.

Why if I run the app outside VisualStudio the exception is not thrown?

Thanks.

EDIT: The path does not exist on disk, it’s wrong from any place/environment. The question is on why the exception can be seen inside VStudio IDE and not running the app from Bin/Release folder.

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  1. Editorial Team
    Editorial Team
    2026-05-25T09:55:17+00:00Added an answer on May 25, 2026 at 9:55 am

    Perhaps you use relative path which is proper when you are out side.
    Also check CurrentDir while running inside MSVS

    UPDATE:

    May be you have a handler for the exception (try/catch). MSVS shows that there is an exception and it goes to handler (normal situation). Outside of MSVs it just goes to handler

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