This is the installer for the program that in turn is able to update the Pro 668. I put in a compressed format as usually cloud save places don't like .exe files. Its also same size as in the previous message. Let us know if this works for you, I can add a link to the pro 668 wiki as I have for other radio shack scanners. That is if the OP comes back, hasn't been seen since the original posting.
www.dropbox.com
If not, another place is to join and see if the file(s) are still at
Yahoo! Groups