I have created an Excel add-ins and created a .msi for the setup in Visual Studio and C#. In my organization, the installation requires an admin authorization and that the IT department installs manually in every machine the add-in.
I have to update frequently this plugin for different reasons such as bugs or new requests and IT can't allocate time for that.
Then, I'm looking for autoupdating the add-in in same way. I was thinking about ClickOnce but I'm not sure if it requires admin authorization to be updated.