Ok, this first of all begs the question why?
Why on earth would I want to do this?
Legacy, sorry, ‘cherished’ software requires that XP be installed but the DL hardware is required for datacentre installation and high availability (1U chassis, redundant power supplies, redundant disks).
The stock XP SP3 CD couldn’t see the SmartArray P400i SAS controller so could not find the partition to install on.
After a failed manual attempt to slipstream the drivers into a remastered XP install CD I came across a utility called nLite that automates the whole process.
I sourced a driver, used nLite to slipstream it into an image of the XP install CD, burned the CD, whacked it in and installed without problems.