Rolling back from 4.7 to 4.6.2

Long ago I had the well known issue with viewing Google Earth from BC.
I fixed it with the SUSSAMB solution ("C:\Program Files\Google\Google Earth Pro\client\googleearth.exe" /RegServer). Since than I never had a problem with Google Earth.

Now, after reverting to 4.6.2. after the 4.7 update, I can't get the Google Earth to function.

I started CMD as administrator and I included the quote signs.
The regserver command just launces GE, that's all.

Anyone knows what to do?