I had a difficult problem with broadcasting powerpoint presentation. The tool I want to use can be found in the Windows Media Encoder 9 SDK - which is by the way a very cool SDK if you need to automate your encoder related tasks. In this SDK, you will find the samples\vb\ppt sample, what is a little powerpoint add-in for doing broadcast from your Powerpoint with slides, video an audio. It can take about 10 users if you direct your users to connect directly to the Encoder and many more if the Encoder is using a Windows Media Server to distribute audio and video. The client side is webpage hosting the media player for video playback and using some scripts to pull out the slides and html from the stream. Now, when I am doing the broadcast on some clients I can see the video and hear the audio, but could not see the slides at all. The Encoder puts the html, image into the stream - I double checked these with taking a netmon capture and identifying the embedded data.
I am suspecting that the browser is not handling the scripts well, or maybe the script is broken somehow. I do not know anything about scripting and JScript, so I am right now collecting information about debugging client side scripts. I though it would be usefull to publish some links here as well:
This is it for so far, if I figured out the problem I will update this article.