Invisible file technology is used for protection and recovery of a file system. In particular, a selection of one or more items to be included in a safety zone is received. A system call that may affect an item in the safety zone is intercepted. If the system call affects an item in the safety zone,...http://www.google.com/patents/US20030115458?utm_source=gb-gplus-sharePatent US20030115458 - Invisable file technology for recovering or protecting a computer file system
