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Editorial Team
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Asked: 2026-05-19T10:50:38+00:00

I am using some Win32 dlls in an Outlook 2007 add-in. So I added

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I am using some Win32 dlls in an Outlook 2007 add-in.

So I added the dlls, with build action “Content” and copy to local directory.

To get the path to them, I would normally use: 

Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "MyDll.dll");

When published by ClickOnce, Assembly.GetExecutingAssembly not giving me the standard path to all my ClickOnce files. My files are in %appdata%..\Local\Apps\2.0, but the assembly is in %appdata%..\Local\assembly.

Is there a better way to get the path to these dlls from within an Outlook add-in deployed by ClickOnce?

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1 Answer

  1. Editorial Team

    This code is giving me the correct path now:

    string path = Path.Combine(AppDomain.CurrentDomain.SetupInformation.ApplicationBase, "MyDll.dll");

    I’ve had to use SetupInformation when parsing command-line arguments, and some debugging led me to this property.

    I will post back if it gives me any trouble, as we will need to install on several machines and see what happens.

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