When you try to run a Microsoft speech-based application in Windows Vista, the application may not work. Additionally, you may receive an error message that resembles one of the following error messages.
Error message 1
An error occurred when creating or initializing the recognition context, so speech recognition will not work.
Error message 2
This voice cannot be played. Please try selecting another voice or selecting a different audio output device
This issue may occur when the application uses Microsoft Speech API (SAPI) 5.1 speech recognition (SR) engines or when the application uses the SAPI 5.1 Test to Speech (TTS) engines.

Note: This issue does not occur on a Windows XP-based computer.