http://msmvps.com/blogs/donscf/archive/2006/10/11/Using-The-New-Microsoft.Speech-Namespace-in-the-.NET-Framework-3.0_2F00_Vista.aspxI have had the opportunity to work with the new Microsoft.Speech namespace in the .NET Framework 3.0. The short of it - it rocks! Very easy to get started, but a wealth of sophisticated functionality for developers. Of course, you need to be running VistaenCommunityServer 2008.5 SP2 (Build: 40407.4157)