USB AutoRun Free Download
Shareware: You can try this program, but this version has some limited features or time usage restrictions. You should purchase it in order to remove those limits.
USB Autorun will add autorun capabilities to your removable disks. You may want to start your backup-program when you switch on your external USB harddisk, or simply just open "My Computer" to view the content. USB Autorun is located in the tray and will alert you when a new/unknown USB removable storage device is inserted.