>Programming in VFP 5.0. Have not noticed a need for ON SHUTDOWN, but just ran across it in the help. I control the exiting from my app, I think. What does ON SHUTDOWN do for you?

It's not as important now, I think...I use only top-levels with hidden _screen, and control exiting in the Queryunload, so ON SHUTDOWN isn't used...but if you use main _screen and someone clicks on 'X' button, that's where ON SHUTDOWN is useful...