How can I add IMAPI post-install

[Hilton]

I don't remember doing it, but I seem to have removed IMAPI from my latest WIndows XP installation. This has obviously disabled Windows CD Burning, which is okay, but for the less technically inclined in the family it would be nice to have Windows Media Player's CD burning functional. I can't find any help with Google... is there any way I can add IMAPI support post-install? Would simply copying the appropriate files from my original CD and registering the service do the trick? (And if so, anyone have a file list?)