A file management system and method for implementing special handling of files, useful for such applications as migration, compression, encryption, and logging access to files. A layer is superimposed between an underlying file system and programs' requests to access files. The layer initiates special...http://www.google.co.uk/patents/US5991753?utm_source=gb-gplus-sharePatent US5991753 - Method and system for computer file management, including file migration, special handling, and associating extended attributes with files
