AJC Revision Archive lets you work with archives from the AJC revision control system.

An AJC revision archive can hold multiple revisions of the same file in one archive file. The archive file is very compact because it is compressed and only the changes are stored each time a new revision is added

This revision control system is used by AJC Active Backup, AJC Directory Synchronizer and AJC Grep (comming soon).

Generally you would use AJC Revision Archive to view archives created by the above programs. You can then extract files, to undo changes for example or just do comparisons between revisions to see what has changed