I was trying to create a new Voice file (wav) and although it seems to have been created when I try to use it inside the VoiceGuide script it doesn't work. We had to reinstall the VoiceGuide on another machine within the last year (I believe). This may have something to do with it. I reinstalled the Speech SDK. Also, the Microsoft Sam voice seems to be missing from the list when I try to create a new wav file. Is this a licensing issue? Do I need to add something to the registry for it to work?