This is a simple control similar to the OutlookBar. The attached zip file contains two Visual Studio .NET projects. These projects are LS_UI and TestUI.
LS_UI - Contains control library
TestUI - Contains sample application, how to use it.
All projects include source code and compiled result. This is simple OutlookBar / SideBar similar control based on UserControl.
To see features or how to use, download and unzip the attached file and open projects in Visual Studio .NET. First build the control project and add control to the test project using "Add Reference" option of Visual Studio .NET.
The Control looks like in Figure 1.
Drag & drop and Designer support.