Add a button to any window - next to Minimize, Restore and Close. graphics will be provided later, for now use as shown in screenshots.
Clicking on this button will get the current process ID and HWND and pass them to another program.
Button style should look like the operating system it is running with: Fit for windows XP, Vista and 7, support transparency.
Icon should appear the left-most to existing icons, i.e. NewIcon|Minimize|Restore|Close. or NewIcon|Close or just NewIcon
provide install and uninstall procedures and deliver only in C++
see enclosed pics for example