Backup

Allway Sync
Synchronizes folders and files between computers and other storage devices. License required for business use.
http://allwaysync.com

Backup-2-zip
Scheduled folder-based backup to ZIP-64 (unlimited size) archives. Runs as a tray application with simple interface and free forum support.
http://free-backup.info/back2zip.html

Back4Win
Continuous backup with versioning, restore, ZIP-64 compression and disk spanning to CDRW (WinXP). [Win32]
http://www.back4win.com/index.html

CobBackUp
Backup files and directories on Windows with scheduling and compression.
http://www2.educ.umu.se/~cobian/cobbackup.htm

Comparator
A folder synchronizing and mirroring tool with differential comparison and selective data restore.
http://www.softbytelabs.com/Comparator

DFIncBackup
A personal backup program for incremental backup files to zip archives.
http://www.dfincbackup.com/freeware.htm

DVD Shrink.
Enables one to make backup copies of DVDs including re-compression options to reduce movie size.
http://www.dvdshrink.info

Easy File Backup
A simple file backup program runs in the system tray and backs up data at a specified interval, and/or on a routinely basis.
http://www.filebackupsoftware.com/

Easy-Backup
Creates scheduled backups of selected folders. [Win32]
http://easy-utilities.com/backup/index.html

File Sift
A utility to help organize data into folders that will fit on recordable media (ie CD or DVD).
http://www.charlesbrandt.com/filesift.html

jBackup
A java based backup tool.
http://www.kova-solutions.com/jbackup.en/

Linbox Rescue Server
GPL edition of a GNU/Linux system backup tool.
http://lrs.linbox.org/wiki/WikiStartEn

Lou Backup
Backup program for Visual C projects - can also be used for general-purpose folder backup.
http://free-backup.info/backup-software.htm#loubackup

MyBackup
A simple one-click backup solution.
http://www.dioneldelacruz.com/

One-click BackUp for WinRAR
Creates backups of selected files and folders using WinRAR. Supports password-protected archives, CDRW and FTP features. [Win32]
http://acritum.com/ocb/

Polder Backup
Copies from Windows directories to other directories with sets, incremental, and delete non-existing.
http://www.xs4all.nl/~philippo/PolderBackup.htm

SyncBack
Folder synchronization tool which integrates into task scheduler, supports file filters, sub-directory selection, and auto-close of programs.
http://www.2brightsparks.com/freeware/freeware-hub.html

sync2cd
An incremental command-line archiving tool which allows backing up complete filesystem hierarchies to multiple backup media (e.g. CD-R).
http://www.calins.ch/software/sync2cd.html

VersionBackup
An incremental backup tool that manages scheduled backups. Site available in German and English. [Win32]
http://www.versionbackup.sb-aw.com