Windows XP built in defrag has some limitations. You can evaluate its features versus other commercial utilities.
For details, read:
Defragmenting A Page File
Why you need PerfectDisk if you are running the Windows built-in defragmenter
Trying to unweave, unwind, unravel
And piece together the past and the future,
T. S. Eliot
What can be done with files that will not
defragment ? ?
Thanks for your help,