Just checked the forum and saw your post. This part of the forum is always slow but there are some Wine Wizards out there who sometimes stop by.
Until then, I would check to see if mscoree.dll is installed. There should be one in both the Windows/system32 and Windows/syswow64 directories. I think they should have been installed with .net.
Even if they are there I would try reinstalling the ,netFramework. For what it’s worth I’ve been running 4.6.2 for months with no registration problems.
Good luck.