Actually Zoom Player added the feature to send a command when zoom is asked to Stop at my request. They wouldn't go the next distance to calculate that the movie was "over".
This prompted Cinemar to work with a developer to develop a more enhanced plugin for Zoom that does this calculation. Work was done enough to prove this capability, but not enough to distribute to anyone as other projects took precedence.
So, if there is an outpouring of Cinemar customers "demanding" this plugin that would pay for it, this raises the priority in it's development.
So, it's up to the troops.
BTW, the plugin is cabable of doing a whole bunch more than just detect Stop or End of Movie condition...