Windows 10 and microsoft Office Anomalies

I bought a new Acer Windows 10 desktop computer (February 2019). It came
with a trial version of Office 365. I uninstalled it with Add/Remove
Programs before I activated it. Next, I downloaded and ran the Microsoft
tool that removes all remnants of all versions of Office. Then I installed
Office 2003. I have used this version for years. But programs like ABBYY
Finereader 14 (The latest) and others launch the Office 365 version of Word
when asked to send to a Word document. If Word 2003 is already running when
ABBYY Finereader is told to send to a Word document it sends to Word 2003.

Is Office 365 hiding on my computer somewhere? I can’t find it in the usual
places.

I looked in the registry at:
HKEY_CLASSES_ROOT\Word.Application\CurVer - to see what version it is mapped
to. It is set to: WordApplication.11. This is correct for Office 2003.

How can I get all this untangled?

- David Harper