As far as I know Visual Basic is a programming language created by Microsoft. If you use it to write a program, it won't be executable on its own. The code will be compiled, but to run it, you'll always need some runtime libraries. You can download them free from the Microsoft site.
I don't know exactly what you mean by getting Visual Basic, but if you're saying that you want to get a programming environment, you might want to have a look at
this site. It has information on several downloads. I hope you can find what you're looking for. I don't have much time right now, so I can't find out anymore details. Sorry!