its a little stretch but you could probably tweak the volume shadow copy service into mimicking a file versioning system by taking snapshots at file level on ea

its a little stretch but you could probably tweak the volume shadow copy service into mimicking a file versioning system by taking snapshots at file level on each modification. this would probably not work for streams or long-lived open handle cases, but I'm not sure how a 'real' versioning FS would do any better there.