All you need to do is create a new text file rename it anything.vbs and then write your vbscript within this. Window's automatically reconizes a vbs file and will complie and run it when clicked on.
Put this into a text file, rename it to a .vbs file and d-click on it.
Code:
Dim A
Dim B
A = 1
B = 1
msgbox "This is " & A + B & " Easy"
The only thing to remember about vbscript is everything is classed as variants so hence when I dimmed A and B you can't put Dim .. as string.
Yeah, well I'm gonna build my own lunar space lander! With blackjack aaaaannd Hookers! Actually, forget the space lander, and the blackjack. Ahhhh forget the whole thing!