ok. it's best to install in a location without any spaces in the path. Many people use
C:\Octave\octave-5.2.0-w64
I think that's the default location. Recommend trying that and seeing if it works.
(FYI it's the convention of this mailing list to bottom post, also try to remember to Reply All and keep the mailing list copied. Others may have answers I don't)
Please be more specific, what did you try and what didn't work. Still the same error message?
Have you verified that the vbs file is actually there? what happens if you double-click the file directly?
Have you tried the following the zip package instructions instead of the exe installer?