In the end, Alaine switched from using the "Unplugged" installer on a sensitive computer with no internet connection to using the "Administrator" installer, which more automatically ensures its system pre-requisites, but requires a system administrator perform the installation.
This now seems to be working.
The "Unplugged" installer works more like the web installer and can be used with SkylineRunner, but it requires more expertise to ensure the system pre-requisites, unless you have already successfully once installed with the normal web installer.
The "Administrator" installer is a more automatic and complete installation across all users on the machine, but it requires Administrator privileges and you must use C:\Program Files\Skyline\SkylineCmd.exe for the Skyline command-line interface.
Neither one is self-updating like the normal web installer.
Thanks for your effort, Alaine, in troubleshooting this issue and letting us know the working resolution.
--Brendan