New to the hobby and I just bought a used 668 and want to update the software. But when I search out what is available, listed by other folks, I find some dead links and nothing for the latest version. I did find one .exe file at RS, a CPU update called Pro-668.exe Is this the most current version? I've downloaded it but will wait for confirmation that it is what I need before using it. Is this the only software I need to download? AND, since my home PC does not have internet, can I update the scanner just by downloading software to a flash drive and then load it to the home PC?