Mapping a server file to a corresponding locally stored copy of a server file and redirecting an application to a server file or to a corresponding local copy of the server file are provided for opening a most up-to-date and/or most reliable version of the desired file....http://www.google.fr/patents/US7743026?utm_source=gb-gplus-shareBrevet US7743026 - Redirection to local copies of server-based files
