According to the following link and discussion, XP MCE is XP PRO and you can install IIS. If you're using 2005, you don't need iis as there is a built in web server.
http://www.codecomments.com/archive306-2006-2-778667.htmlHope this helps.
>Is the XP Media Center Editing XP Pro on steroids or XP Home on steroids?
>What I really need to know is, if I can install IIS on a PC running XP Media Center Edition or not?
>
>Thanks,
>Einar