I haven’t found any good intro to this online (only parts of it), so I will give my best to describe the process I took here.
The goal is, to create a ClickOnce installer for a .NET project,
which contains a dependency to a COM object. The quirk here is, that we have to deploy this COM object with
the project and we have no control over it. We just have been given a DLL, which in turn is a native COM object.