I use the following in my HTML--this allows one to launch the stream via a media player:
<A HREF="mms://nwohio-livescan.dyndns.org:8080/">Link</A>
Feel free to poke around in the source code on my
http://nwohio-livescan.dyndns.org/ site and let me know if you have any other questions.
Depending on the type of stream and where it's at, you may need to use a different method.
Jeff