Step 1: http://www.apress.com/book/bookDisplay.html?bID=213
Build Your Own .NET Language and Compiler takes the mystery out of compiler and language development and makes it accessible to every programmer. Ruthlessly practical, this book teaches fundamental techniques that programmers can use in their every day work.
As a unique added bonus, this book includes a complete QuickBasic compatible compiler with source code.

Step 2: Finish the VB 6 implementation

Step 3: Profit!

TTFN - Kent

[Listening to: Natural Blues - Moby]