From Westmar Corporation:
Ever wanted to revert to an earlier status of your work in Word? Frustrated with the inadequate AutoRecovery feature? Working with complex documents and needing an easier way to back up your data? Use our convenient and flexible CreateBackup AddIn for Word to create backup copies of your work easily and reliably.
The add-in allows you to create backup copies of your currently active document either with the click of a button or via automatically scheduled backups.
The add-in can store all backups either in one central folder or within a subfolder of the folder where your original file is stored.
When you buy a license key for CreateBackup AddIn, you will also be able to specify the number of backups that will be kept for each document - or store unlimited backup copies.