Hi John,
The response I got from Data Dynamics a few weeks ago said they had not tested Active Bars with VFP and had no current plans to do so. There was no mention of "unworthy" product. Rick uses Active Bars on his HTML Help Builder program, seems to work fine for him. I've tried their trial version with VFP and saw no problems (not an exhaustive test). I guess the risk is that you have no guarantee that any changes made to the system will always work with VFP.
Bob Tracy
Never engage in a battle of wits if you're only half armed.