I got the add-in on the Helen Feddema's Home Page (code20.zip). This add-in allows you back up front end Access databases and the most common types of back end databases.
I must admit that I do not have much experience with Access, but I'm looking for possibility that users can more easily backup the database, for example, by clicking a button or even automatically when closing a file. I've googled for the answer, but I could not find anything suitable. DoCmd.RunCommand acCmdBackup command also does not do the expected backup. That's why I'm thinking about an option of creating a backup by clicking on the button (or automatically when closing a file) and runnig this add-in that would do a backup.
I have no idea whether this add-in is set up to be executed that way.