In my web form, I have used ASP.NET AJAX Beta from Microsoft. I have ScriptManager control whose EnablePartialRendering property is set to FALSE. I have used MS Agent Character to speak some text within the UpdatePanal control. Now, It is working fine. MS Agent Character is speaking when EnablePartialRendering property is set to FALSE. But if I set EnablePartialRendering property to TRUE, I get Error.
Project file : The demo Web Application folder is attached as a zip file.