DocShield is designed to prevent or remedy the catastrophic loss or accidental modification of important electronic documents. It protects these documents by continually monitoring them for changes, then creating and storing snapshots of those documents as they change through time. The operation can be described as "passive" because it will never delete nor modify your shielded documents. "Snapshots" are stored in a compressed archive, which it can be configured to keep in more than one location for added protection. Versions of the document throughout its history are accessible to view or restore. The archive of shielded files may exist on a local disk, a network disk, or other storage devices.