COMODO Backup has tons of great features for a free backup program. It can backup registry files, files and folders, email accounts, particular registry entries, IM conversations, browser data, partitions, or entire disks like the system drive.
Data can be backed up to a local or external drive, CD/DVD, network folder, FTP server, or sent to someone as an email.
Various backup file types are supported like creating a CBU, ZIP, or ISO file as well as running a two way or one way sync, using a regular copy function, or creating a self-extracting CBU file.
Depending on the backup file type you use with COMODO Backup, you can specify if it should be spliced into smaller pieces, compressed, and/or password protected.