It is just one line code in .vbs which allows you to listen desired message from your computer.You can use this application as narrator .

1.Open notepad.exe.
2.Type the following code in the notepad.
CreateObject("SAPI.SpVoice").Speak"Enter your message"
3.Save above file as .vbs.
4.Open the vbs file and you will hear the message written inside the " ".