How To Tile 2 Windows forms running from different Applications

Question

Hi Everybody,

I am looking to develop a seperate Help application for my existing application, what I need  is that the Help window should get tiled with my Existing Application window as it happens in Msword etc.

Currently I am opening the Help Window From the Main Application by invoking the exe but the Help window does not gets Tiled with the Main Window.....

Please any kind of help shall be highly appreciated..........