Re-Installation

[Amnesia]

My dilemma:

I've got a laptop with XP Pro which has no drives other than the hard drive.
It comes with reinstallation disks but these require a USB CD or floppy to
reinstall it. The laptop is capable of booting over a LAN

My question is since I am networked at home, how do I boot the laptop over
the LAN and then use the CD Drive on my desktop computer to reinstall XP Pro
on the laptop? (I really don't want to but a USB CD Rom just for this
purpose.

Thanks
Amnesia