What version of Google Earth will NOT auto-update

New laptop with Win 10 Home.  I'm trying to reestablish the link between Basecamp and Google Earth.

I stayed at Basecamp 4.6.2 and installed Google Earth Pro 7.3.1 32-bit.  Entered the instructions that I got from here a long time ago.

Worked perfectly.  One day later and Google had automatically updated to 7.3.3 and the linking no longer works.

Uninstalled and reinstalled 7.3.2.  Link works fine, then within a day GE auto-updated again.

Back to the Direct Install download section for GE.  Their web site warns that 'some' of the versions do not auto-update.  But they do not specify which ones those are.

I have tried 7.3.2 and 7.3.1 and they both auto-updated.  I looked in the settings for both and there is no option to turn off auto-updating.

So does anyone know which version(s) do NOT auto-update?