Hi
When I boot up it just seems to ignore the CD (even though its set to look there first) and goes to the option screen of XP Media Centre Edition or Safe Mode (or F8) - in other words, having the CD Rom in (with the burnt Avira Antivir exe file on it) doesn't make any difference.
(Probably not relevant, but I seem to recall using DeFogger to disable CD emulation programs)