Thanks @adrianv, I am not compiling to 32bits. But I tried some Excel and Word examples and they work fine (compiled in the same way).
I tried with `OneNote.Application.12`, `OneNote.Application.15` and `OneNote.Application`. All of them fail. `GetHierarchy` is still there because the python version works. Regarding the last bullet, I missed it when I wrote the post. I will update it. I think that it might be related with Late-/Early- bound IDispatch (which I don't understand). In the python example that I found, it uses `.gencache.EnsureDispatch` instead of `Dispatch`. I don't know if there is something equivalent in `winim`.
