Spoken output can also appear as textual output in the form of a cartoon word balloon. This can be used to supplement the spoken output of a character or as an alternative to audio output.
Figure 2. The Word Balloon
Word balloons support only captioned communication from the character, not user input. Therefore, the word balloon does not support input controls. If you want to provide user input for a character, supply those interfaces from your application or the other input services provided by Microsoft Agent, such as the pop-up menu.
When you define a character, you can specify whether to include word balloon support. However, if you use a character that includes word balloon support, you cannot disable the support.