How does Backup4all handle archive bit for backed up files?
By default Backup4all does not modify the archive flag. Backup4all uses its own catalog file (“.bkc”) to keep track of the new and changed files. The advantage of a catalog is faster backup execution. Another advantage is that you can run Backup4all together with other backup applications because they will not interfere with each other. However if you want to set the Archive bit, you can do that from the Type page of the Backup Properties window.