06971018 is referenced by 112 patents and cites 12 patents.

A method and system that protects selected system and other files, by preventing changes to those files. In an asynchronous alternative, the change is prevented by copying back the original file when a protected file is changed, as known via an asynchronous notification. In an alternative synchronous embodiment, the change to the file is prevented from occurring. In the asynchronous notification alternative, a directory change notification notifies a file protection service whenever a file that has possibly changed is closed, providing the file identity as part of the notification. The file protection service determines from the file identify whether the file has been deemed protected. If protected, the file protection service prevents any actual change by verifying whether the protected file changed, such as by analyzing the file's contents against known valid contents. If not valid, the file protection service restores a saved copy that is itself verified.

Title
File protection service for a computer system
Application Number
9/560788
Publication Number
6971018 (B1)
Application Date
April 28, 2000
Publication Date
November 29, 2005
Inventor
Lonny D McMichael
Redmond
WA, US
Mark J Zbikowski
Woodinville
WA, US
Wesley A Witt
Redmond
WA, US
Agent
Law Offices of Albert S Michalik PLLC
Assignee
Microsoft Corporation
WA, US
IPC
G06F 017/60
G06F 017/30
H04L 009/00
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