system
8
My bad. It never occurred to me to try to extract a file, so I did and was immediately prompted for a password. I clicked on the Help button and read the display. It turns out the plus signs indicate password protected files. It seems to me that in the olden days of DOS and pkzip, that I couldn’t even open a protected archive without specifying a password. Anyway, ignorance is no excuse. Thanks for setting me straight.
Hornus