generating docking panes like visual studio solution explorer

Hi, I want to add a docking pane to my project like visual studio solution explorer or toolbar.
I searched it on google, I found some libraries for it. But I dont want to use a library.
Is there another way for it?

I've never written anything like that myself yet, but I'd probably start by programmatically manipulating the docking window's Dock property, depending on the window/mouse postion.

HTH