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How do incremental backup programs work?

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jgpaiva:
F0dder: thanks for the pointer to filter driver! I think that's pretty much what I'm looking for to monitor the changes to files, right?

f0dder:
F0dder: thanks for the pointer to filter driver! I think that's pretty much what I'm looking for to monitor the changes to files, right?
-jgpaiva (September 28, 2008, 09:38 AM)
--- End quote ---
Yup.

You could use a usermode filesystem change notification instead, but that only tells you "there's been changes in this folder" (or subfolder tree), then you need to scan the folder (or entire subfolder tree) for changes - and then you'd have to scan those files for updates.

So filter driver is definitely the way to go, since you get notified of each individual write.

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