Cobian Backup
From Free Knowledge Base- The DUCK Project: information for everyone
Free backup software for Microsoft Windows featuring compression, encryption and automatic incremental archiving. Backups can be saved to CD, DVD, USB memory stick, a second hard drive (internal or external), etc. It supports long file names (32,000 characters) for all backup routines.
"Cobian Backup is not an usual backup application: it only copies your files and folders in original or compressed mode to other destination, creating a security copy as a result. So Cobian Backup can be better described as a "Scheduler for security copies". Cobian Backup supports several methods of compression and strong encryption. "