HRESULT Words(PTSTR pszWords);
Informs the speech-recognition engine that a particular set of words is likely to be spoken. The engine can ignore the set of words. This calls right into the low-level speech recognition API, ISRGramDictation::Words, and has the same functionality.
� Returns NOERROR if successful, or one of these error values:
E_INVALIDARG
E_OUTOFMEMORY
SRERR_NOTSUPPORTED
pszWords
[in] Address of a list of words (separated by spaces) that indicate words likely to be spoken during dictation. The list is terminated by a null character.