another question from me: in save2ftp the program was minimized to a tray icon when starting the computer. Is this also possible in apbakcup or is it a setting? Or is this only the case in the trial version due to the register window?
It is because of Save2FTP is a Free program.
APBackup has to show the nag screen in trial version on startup.
In registered version APBackup doesn't show main window on startup and shows only Tray Icon in the Tray bar (additional you can hide icon too so user won't know that APBackup is started).