Thank you very much! I skipped straight to your step 3... I was able to use vim (yes, old vim) to edit the file
C:\Users\minichm\AppData\Roaming\Sublime Text 3\Packages/User/ActualVim.sublime-settings, where I changed the
neovim_path from an empty string to
"C:\\bin\\Neovim". I exited Sublime & re-opened it, and now everything works great. Thank you again!