[python-win32] Automating OneNote/COM without editing the registry

[johnny at birchetts.com]

I've successfully used pywin32 to automate some OneNote stuff using pywin32
directly and also using onepy, but I ALWAYS have to edit the registry to
"fix" the OneNote key  {0EA692EE-BB50-4E3C-AEF0-356D91732725} as described
in this stackflow answer:
https://stackoverflow.com/questions/16287432/python-pywin-onenote-com-onenot
e-application-15-cannot-automate-the-makepy-p 

On a fresh install of Windows 10 and Office 2019 + OneNote 2016, the
registry looks like the one in the stackoverflow question. 

>From time to time, I am on a machine where I don't have admin and I just
can't automate OneNote. Is this a limitation of win32/COM or a limitation of
pywin32? I seem to be able to use automation from powershell as a non-admin,
so I'm not understanding what the problem with makepy is. Also, I noticed
makepy does successfully generate a static proxy .py file, but when I try to
create a onenote object
with win32com.client.gencache.EnsureDispatch('OneNote.Application'), it
fails with the typical makepy error message "COM object can not automate the
makepy process". From what I can tell, powershell is creating a runtime
wrapper in a similar way as pywin32, so it seems like this should be
possible, but I don't have enough experience with python or COM to figure
this out. Google is no help because every answer says "edit the registry".
Is that the only answer?