Are the Zip files from Toucan and 7Zip non-standard, or for some other reason not compatible with the Windows implementation?
(In my case) the backups from Toucan generate an error using the Windows XP Explore Archive command, as well as with the excellent freeware app Filzip which I have been using for years.
However, a test with 7Zip did not generate any errors.
Thanks.
(Moved to its own topic, since earlier question got lost. And this may be a 7Zip question more than Toucan.)