IExtensibility COMAddin Outlook

[guzman-rc]

I need to create a COM Addin for Outlook and I am using the example: IExtensibility COMAddin Examples (ClassicUI)
but I can't get Outlook to load the DLL.

I am using Visual Studio 2015 with C#.

The project compiles successfully and the following files are created:

Register the DLL with the command:

But when I start Outlook the DLL does not load because of a runtime error:

I would be grateful if you could help me to solve this problem.

[Jozef Izso]

I am sorry, I don't provide support for runtime activation issues in Office apps.

You can try StackOverflow, Microsoft Support or to troubleshoot the problem yourself based on Microsoft documentation.