Guessed, I will work on it this weekend. This is difficult for me. I don't know where to go to "Select" the file, as you said. I foolishly went to File Explorer - C:\Windows\System32\FM20.dll
This is not the right place.

My problem is that some of my macros will not work anymore. They used to work fine. I think they updated to a new version of Word366 and this new Word Version is not quite right yet.

The Macro stops dead in its tracks with this command highlighted in blue:
Dim myData As DataObject

Also there is a little box with this error inside: Compile error: User-defined type not defined.
I have C:\Windows\System32\FM20.dll
Windows 10 Enterprise, 64 Bit, Office365 Pro Plus

And I don't know where to go or how to register FM20.dll