Make your computer talk what you type
Step 1:
Open notepad
Step 2:
Copy and past below code to notepad
Dim Message, Speak
Message=InputBox("Enter text","Speak")
Set Speak=CreateObject("sapi.spvoice")
Speak.Speak Message
Step 3:
Save it as "*.vbs" file
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If any error (i.e script disable your machine ) refer this page