Patent Number: 7,788,228

Title: Recursive file backup

Abstract: Methods and systems are provided for recursively backing up modified data files where only modified data files are backed up and that provide a user with an efficient way to determine which original files have been modified to allow the user to readily locate original files if the user is not satisfied with any modifications to the original files. A mirror memory structure is created, but only modified files are saved to the mirror memory structure and modified files bear the same names as original files to assist in easily locating original files.

Inventors: Feinberg; Yaniv (Redmond, WA), Butnaru; Tzipi (Redmond, WA), Pamarthi; Ramakrishna (Bellevue, WA)

Assignee: Microsoft Corporation

International Classification: G06F 7/00 (20060101); G06F 17/00 (20060101)

Expiration Date: 8/31/12018