I'm going to create an application (C#), which has its DeskBand on the Windows TaskBar. I've found one complete example program, which does this, but I didn't manage to successfully install (add to Toolbars menu on the taskbar) it. I think, it's because my Windows is x64, there are no other visible reasons...
So, my question is how to create and add a deskband to Windows 7 x64 taskbar?
According to Microsoft, Deskbands are not recommended for Windows 7, although they still work. Also keep in mind that Microsoft requires that Deskbands support Aero on Windows 7 via IDeskband2 Interface, rather than IDeskband. Also, Micorosft has officially said that IDeskBand2 may be altered or unavailable in subsequent versions of the operating system or product.
Finally, be very careful about creating shell extensions in managed code.
来源：https://stackoverflow.com/questions/5556665/how-to-make-deskbands-work-on-windows-7-x64