Not to push my own stuff, but here I've got a sample with a module that will create backend backups automatically. It will do so every X days, if the ldb file does not exist. You have to provide the number of days and can optionally choose where to save the backups to. You don't have to install the msi if you don't want to. If you open the mda file, you might want to start with the Aph_frmSettings1 form. Also, the backups will only occur for split databases.
If you don't like my method, Bob Larson has a method on his website.