The SpeechInput Object
[Microsoft Agent is deprecated as of Windows 7, and may be unavailable in subsequent versions of Windows.]
The SpeechInput object provides access to the speech input properties maintained by the Agent server. The properties are read-only for client applications, but the user can change them in the Microsoft Agent property sheet. The server returns values only if a compatible speech engine has been installed and is enabled.
The Engine, Installed, and Language properties are no longer supported, but (for backward compatibility) return null values if queried. To query or set a speech recognition's mode, use the SRModeID property.