RailDrive.ShellExtension.x64.dll failed to register

During installation, receive error “RailDrive.ShellExtension.x64.dll failed to register HRESULT -2147024770”

Windows 10 - all latest updates installed.

Anyone a clue how to fix?

I have a similar problem after I update my win10 two days ago.
I tried to re-install the Microsoft Visual C++ 2015-2019 Redistributable (x64) in the download page of RaiDrive and it works.
Hope this helps.