I just figured that those exe files had to be somewhere, if not hidden.
In my case, BandLab Assistant downloaded the files and placed them in the following:
C:\users\myname\appdate\roaming\bandlab assistant\downloads.
After an exhaustive search for those elusive files,
that is where I found them. Since it was a real challenge for me to get the assistant to work for a couple of weeks, I took the precaution of copying those exe files to a backup folder, just in case. Now, that is
my scenario and may not be others. dunno.