>Are you expecting the installation process itself to halt when it is an UPGRADE install and it finds VFP7 still installed on the machine?

Yes, my point exactly. Though personally, if the license agreement is very clear, I will certainly abide by it.

But will it technically be enforced? That's something I sorely need to know, as a license-manager for vfp at my agency. Other vfp8 users may not be as scrupulous, and I can't watch everyone all the time, what with credit card purchasing being virtually untrackable - particularly if users use the product on machines I can't "watch" through our network.