Peter,
Maybe there is a market for somebody to create a VFP obfuscation process. This is the approach taken for NET. You can buy commercial packers/encryption tools for NET but the one that comes in the box is an obfuscator. There are a few VFP differences such as requiring THIS to call methods in VFP that make relabelling methods less useful, but there is heaps you can do to make it really tricky.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1
