A VB6 program is nothing than a Win32-executable, that relies on a number of accompanying COM-ActiveX-libraries. So its just a matter of creating a proper setup-package.
By the way, the VB6 IDE runs perfectly on a Windows 7 64 bit machine (with a couple of small tweaks of course).
PS. Unfortunately my company still ships commercial and publicly available VB6-products, so - I happen to know that.
