I think I've discovered a possible solution to this issue.
I've tried to install all of the available versions of VIA on the support site, but each failed after installing the service and trying to create the VPN adapter, and rolled back with a failure message. The message was fairly cryptic and didn't provide any clue about what to try to resolve it.
I had Oracle VirtualBox installed on my computer with it's associated VirtualBox network adapters.
After experiencing failure with all of the available versions of VIA, I despiration I uninstalled VirtualBox. After it was uninstalled, I tried the VIA installer again and success! It completed! When I'm feeling inspired I might try to put VirtualBox back on my computer.
Hopefully this helps some people with the same issue.