Those quick fixes might work here and there, but if you want ALL CD-ROM plugins (for any plugin/emulator/CDR software) to work you'll need an ASPI layer. Go to Peppy's Windows XP page and go to the tweaks page (http://xp.xyu.ca/tweaks.htm). If you use this, you won't need to make any changes to the configuration you were using in Win98SE. Everything should work just as it did.