Getting a Visual Basic 4 Compiler?

I was reminded of a kind of somewhat horrifying experience from my own career that Dan's just reminded me of. I've seen it happen with the third-party software that the company's bought and then it's no longer available. If you're not picking things that everybody knows, sooner or later you run out of people who know how to maintain these things. So if you don't keep moving it forward, you get to a point you can't move it forward.