Making VB Form the first thing that shows up in PowerPoint

[reaton1]

I am writing a VB application in PowerPoint and I want the VB form to be the first thing that opens. The VB form will open the PowerPoint slides. How do I do this? Can this be done or do I have to write a macro in PP that opens the VB form from PP.

If so, how do I call a VB in PP from a marco?

Thanks