It looks like the player will fallback to Flash for H.264 video. It says H.264/MP3 is supported natively by IE9 and Webkit, but I have yet to see an example of this working with live streaming. If you can provide an example, please let me know, as I would like to see this working too. The only browser I know that supports this is Safari on iOS using Cupertino streaming.
As far as configuration of third-party programs/players, you'd have to ask on their support channels.