I'm trying to localize my office add-in, I've read through many docs and tutorials on how to do this, but they all teach on how to localize it based on what the current Windows language, not necessarily what office language interface pack is in use. 

So I end up in a situation where my Windows language is French, I don't have any office language interface packs, therefore all my menus in the Office are in English, except my add-in which is in French. It looks kind of odd, so I was wondering if there's a way to localize based on current office language interface pack in use.