I had the same problem. I think it's something about the dll.
I installed DevComponents.DotNetBar2
on my PC (it's a setup called DotNetBarSetup
) and then
I got the dll-file from the HD
C:\Program Files (x86)\DotNetBar for Windows Forms\DevComponents.DotNetBar2.dll
Next, you have to drag the dll-file from windows explorer to the toolbox in Visual studio.
That should do the trick. Hope this helps.