Short description of AJC Active Backup 1.3.5: AJC Active Backup monitors the files you change on your PC and then automatically and silently backs them up into a compact archive.
The archive stores multiple revisions of each file you edit. This means you can get back any version of a file giving you unlimited undo capabilities and also you have a complete record of what you have been doing. It also has the built in capability to show you a comparison of what has changed.