MAKE WINDOWS GREET YOU WITH A CUSTOM VOICE MESSAGE AT STARTUP!!!!!!!!

Click on Start.
Navigate to All Programs, Accessories and Notepad.
Copy and paste the exact code given below.
========================================================================
Dim speaks, speech
speaks="Welcome to your PC, Username"
Set speech=CreateObject("sapi.spvoice")
speech.Speak speaks =================================================

Replace Username with your own name or you can change the texts between "    " as you want to speak from pc( but remember don't change anything apart from this otherwise this trick might not work appropriately.)

now,

Click on File Menu, Save As, select All Types in Save as Type option, and save the file as Welcome.vbs or "*.vbs".

Copy the saved file.

Navigate to C:\Documents and Settings\All Users\Start Menu\Programs\Startup (in Windows XP) or to C:\Users\ User-Name\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup (in Windows 7 and Windows Vista)
(if C: is your System drive).
Paste the file
Same process for windows 8 users too.

Now next tym wen ur pc wil be started it wil welcome u in itz own voice!
Enjoy...