I've written a program that subclasses another program and intercepts all the WM_LBUTTONUP messages. When I build the program in debug mode and run it all works as expected; however, when I build the program in release mode, the subclassing no longer works.

If anyone has any idea as to why, please tell me. If you want to look at the souce code let me know and I will send it to you so that you can further examin it.

Thanks,
Mike