From Juergen Rathlev:
Personal Backup is a program for saving personal data to any destination folder. This folder may be located on a local fixed or removable drive, on a Windows network server or on an FTP server. Performing the backup can be done manually or automatically. By default during the backup the program checks whether the file to be saved is newer than one already backed up. Only files with newer timestamps and, of course, files not yet have been backed up are saved. An alternate criterion is the archive bit of the files. You can make scheduled backups with destination paths changing daily or weekly. For individual schedules it is easy to start a backup using Windows Task Scheduler.