I think you might be onto something. See http://msdn.microsoft.com/library/techart/msdn_texttosp.htm.
It's a doc about the Text-to-speech SDK. It has an active-x com control.

Once you got the thing running (didn't read far enough know what's involved) You can have it just speak the caption or the value of a control with:

object.Speak(this.caption, vtxtst_STATEMENT)


>MS Voice Control and/or IBM ViaVoice.
>
>>The mouseover stuff is pretty easy, but is there anything in vfp to play the sound? Would you just store each phrase as a .wav?
>>
>>>Haha....no, I'm serious! You could have the MouseOver for controls kick out speech like "Print button" and over databound controls it could say "First name is John". You could also have a VerbalSynopsis property for the Form that, when set on, could say a verbal synopsis of what is displayed when the record pointer is moved.
>>>
>>>
>>>>Easy, just train a monkey to sit on your shoulder, watch the screen, and hit a button on a voice sampler. < g >