[mx04] xml to access CD Drive

Hi,
I’m having trouble trying to link a .swf using xml to open up an html link that is on the cd that a user will have in their drive when running the swf.

home.swf > goes to CD drive> open up about.html

example of xml:
<linktype=“sample” display=“yes” ref=“file:///d:/about.html”>

is there some kind of wild card to access the CDROM drive?

any help will be greatly appreciated.