Trick to create specific welcome audio message on PC/Laptop:

Step 1:

In Windows XP, Windows Vista and Windows 7:
Go to Start menu then go to All Programs, then Accessories and finally select the Notepad.

In Windows 8:
Go to Start Screen and start typing Notepad, then select the Notepad.

Step 2:

In the Notepad copy and paste the code given below:

Dim speaks, speech
speaks="Welcome to your PC, John"
Set speech=CreateObject("sapi.spvoice")
speech.Speak speaks

Step 3:

In the code above, you can replace "John" with your own name or you can replace the entire "Welcome to your PC, John" with your own custom message like "Welcome to My World", "Welcome" and so on.

Step 4:

Once you have entered the custom message of your choice according to the above mentioned steps you need to click on the file menu and then save it using the Save As option. In the Save As dialog box, change the Save as Type to All Files and give the file name Welcome.vbs or Anyname.vbs.

Step 5:

Now navigate to the folders given below:

In Windows XP:
Go to "C:\Documents and Settings\All Users\Start Menu\Programs\Startup"
Or without navigating through all these folders copy the address within the quotations and paste it in the address bar in the My Computer.

In Windows Vista, Windows 7 and Windows 8:
Go to C:\Users\Your Username\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup. Please note that the AppData folder is a hidden folder. So before navigating to the folder options file menu and select the ‘option show hidden files and folders’. Or without navigating through all these folders type your username in the above address, copy it and paste it in the address bar after you click on My Computer Logo.

Step 6:

Now after going to the Startup folder, minimize the window and copy the Notepad file you have saved and then paste it in the Startup folder.

In this way you have successfully configured your system with the welcome audio message of your choice. And from the next time whenever you will log on to your system, you will hear the specific customized audio message on your Laptop/PC.