That's about all I've got. I had defraggler to defragment my C: drive, alt tabbed to do something else, alt-tabbed back to check on progress and defraggler crashed. I've no idea why. Crash log is attached. Defraggler was running in 64-bit mode on windows7 ultimate.
<edit>My bad, apparently you have to hit an attach button, it doesn't do it automatically when you post it exception.txt</edit>