This is simple notepad trick that convert any text to audio with just a click.
Using VBScript
1) Open Notepad , and copy/paste following code
Dim msg, sapi
msg=InputBox("Enter your text for conversion–www.dhavalkoradiya.blogspot.com","Text-To-Audio Converter")
Set sapi=CreateObject("sapi.spvoice")
sapi.Speak msg
2) Save as .vbs Extension
PREVIEW
Enjoy :)