The more I understand about Windows Media Services 9, the more I like it. I especially like the fact that can create your own data source plug-in as part of a custom broadcasting solution. However, one quick gotcha – you can only use custom plug-ins with WS03 Enterprise Edition. Didn’t realize until I had built and configured my virtual media server and compiled the sample data source plug-in. Annoying, but not the end of the world.