I realize that for each snapshot, FD-ISR creates a folder in C:\$ISR using zero-based index of the snapshot number for it's name (ie. "0" for snapshot 1, "1" for snapshot 2, and so on). When you boot into a snapshot other than the currently active one, does FD-ISR just copy/delete any files which are different in the new snapshot to the system partiton (ie. WINDOWS folder, "Documents and Settings" folder etc) aside from ones that are anchored ? OR does it perform some jiggery pokery and actually boot into the snapshot folder itself (eg. "1"), using files rom within this folder to run windows ? I'm asking because I want to know if it will affect defragmentation software from working properly ?