Rescue and Recovery
Rescue and Recovery version 3.0 consists of a bootable partition containing various system recovery tools, including full recovery of the preinstalled Windows XP partition. It can be activated by pressing the Access IBM Button during system boot. It contains a FAT filesystem (labeled "IBM_SERVICE"), and has partition type 0x12 ("Compaq diagnostics" in fdisk).
Apparently, the MBR is not "configured properly" if LILO or GRUB has been installed in it. It is not known how to invoke Rescue and Recovery once LILO or GRUB has been installed in the MBR.