On rare occasions you will get an error during the installation of Echelon OpenLNS Server on Windows 8.1 64 bit saying that the installer can't create specific registry keys.
TAC Vista, SmartStruxure Solution, Other
Windows 8.1 64 bit
For some reason the user doesn't have the appropriate permissions to access those registry keys
Add the registry keys manually and run the installer again.
You can also run this reg file that will add the keys