>I have a combobox with style set as a Dropdown List. If the user activates the combobox and moves through the choices the value changes. If the user presses the escape key the last highlighted choice is accepted. Is this VFP's intended behavior and, if so, is there a good way around it?

I don't think that this is default behaviour, however there is generic method to 'skip' any keypress behaviour, checking key pressed in Control.KeyPress and issue NODEFAULT.