*DOH*
Do you have a floppy drive? If so, the master disk is bootable. You can just boot off it, then "CTRL C" out of the batch file and run it from there.
Have you tried the "DOS Compatibility" options in XP? Even though we are an MSDN shop, we haven't really done much with XP yet, so I don't know if that'll help.
Finally, gimme a shout if you are still looking for one ... the problem with a DOS bootable CD is that it needs to load the ATAPI CD drivers to access the CD ... which is kind of a chicken and the egg deal with DOS.