Whether or not to open the file used when you last close the designer. A check of this option will auto-open the most recently used file at the start of the designer; no file will be opened if it is unchecked.
Auto backup (.BAK)
Whether or not to automatically save the original file when you save a modified esProc file (.dfx).
A check of the option will enable the system to automatically save a backup copy of the unmodified file when you save the modified file. This lets a user to recover the file using the backup copy whenever there is something wrong with the modification. The system won’t automatically save a backup copy of the original file when a modified copy is saved if the option is unchecked.