Speech to Text conversion

I am now working on Speech to Text conversion. .NET 4.0 has System.Speech Library.
Refer following articles if you are interested.....

http://www.microsoft.com/windowsxp/using/setup/expert/moskowitz_02september23.mspx -- Microsoft Article
http://www.c-sharpcorner.com/UploadFile/ssrinivas/SpeeechRecognitionusingCSharp11222005054918AM/SpeeechRecognitionusingCSharp.aspx - Sample example
http://www.dotnetforce.com/Content.aspx?t=a&n=216 - Sample app
http://www.15seconds.com/issue/021126.htm - Article
http://www.codeguru.com/vb/gen/vb_misc/plugins/article.php/c11019__2/VB-and-Voice-Recognition.htm - Article
http://www.codeguru.com/vb/gen/vb_misc/plugins/article.php/c11019__2/VB-and-Voice-Recognition.htm - Article
http://stackoverflow.com/questions/3890102/c-and-microsoft-speech-recognition-and-speech-synthesis - Blog
http://www.c-sharpcorner.com/UploadFile/nipuntomar/3316/ - Test to Speech
http://www.c-sharpcorner.com/UploadFile/nipuntomar/3385/ - Speech to Text
http://www.dreamincode.net/forums/topic/84789-convertion-of-speech-to-text-using-visual-studio-8/ - Code
http://www.c-sharpcorner.com/uploadfile/mahesh/222/default.aspx - Code
http://stackoverflow.com/questions/3228554/i-want-to-convert-speech-to-text-in-wpf-how-can-i-do-this - Code
http://franksworld.com/blog/archive/2009/06/30/11617.aspx - code
http://www.dreamincode.net/forums/topic/134436-speech-to-text-conversion/ - code
http://www.dreamincode.net/forums/topic/206629-speech-to-text-conversion-in-c-sharp/ - code