DUH! There is absolutley no reason not to defrag a fat 32 partition, no matter what OS resides there.
That's not what Malke is saying. He's saying WHEN booted into Win98,
DO NOT attempt to defrag your XP installation from Win98 using its
defrag program regardless of whether or not it's FAT-32. I also
agree with him as I have experienced an OS disaster some years ago by
doing that very thing.
The Win98 defrag program is only concerned with the Win98 OS and what
files need to be moved and not moved - etc. It knows nothing about
XP boot files or placement. Tim Slattery has been lucky thus far if
he in fact is completely defragging a dual boot system from one or the
other OS. Because he hasn't had problems, doesn't mean it's the
right thing to do.
Also - there are several Tech Support people representing popular
defrag programs who post in this echo. (Perfect Disk, Executive
Software) who agree with Mr. Malke.
Regards.