underline spoken text

[Mi_los]

hi...
this is code for txt speech in my program

  private void btcitaj_Click(object sender, EventArgs e)
    {
        SpVoice voice = new SpVoice();
        voice.Speak(rtb1.Text, SpeechVoiceSpeakFlags.SVSFDefault);
    }

that is one part of the program...the other one is, word that is being spoken at the moment should be underlined...you know...it's like karaoke.
i can't solve this problem, so i ask you for help if you can handle this

tnx! : )

[serkan sendur]

what dll are you referencing to?

[Mi_los]

i'm beginer, so i don't understand what does that mean.. : /
it's windows application, i just need code, as soon as it's possible

[serkan sendur]

i am sorry man, this does not work that way.

[Mi_los]

ok...thanks anyway...