>> (Also this is presumably why every defrag tool known to man fails to 
>> defrag certain parts of the filesystem.)
> 
> That's more because bits of the kernel keep physical locations of files 
> in memory (like swap, or root directory, or whatever).  Also, if you 
> have the file open for writing (like the registry, say), then it's rough 
> to defrag while it's being written.  Which is why (for example) the 
> "page file defragmenter" runs during boot rather than live.

Indeed. If you could run a defragger with the filesystem unmounted, you 
could move around anything you like.

Still, Windows doesn't seem to support the concept of mounting and 
unmounting filesystems at will...

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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