AJC Active Backup

List of features

Compatible with Windows 7, Vista, XP, 2003, 2008 32/64 bit.
Instantly backs up files as soon as you change them.
You choose which directories and file patterns to backup.
Protects you from mistakes and software bugs or file corruption by letting you go back to any previous version of a file.
Multiple versions of each file are kept so you can undo to any previous version.
Once the initial setup wizard has been filled in there is no more effort involved. The system is completely automatic and requires no regular attention.
Your backups are always up to date, up to the second. No more restoring to last night's or last week's backup.
You can add descriptions to particular file revisions in a backup archive to mark a specific important point in a file's development or a safe point to restore back to, e.g. "Updated copyright section and proof read by JP".
The setup wizard makes it very easy to install and trains you as you go along. By the time its setup you know how to use it.
Read about the features of the revision control system here.
Built in file comparison facility so you can see what has changed.
Operates silently in the background with very little extra load on your PC.
Status bar indicator tells you what the software is doing.
Very compact archive size only storing changes to files each time.
Auto purge system prevents the archives from growing too large.