How to prevent an app from being pinned in Windows 7?

Question

I am trying to prevent the user from pinning my .NET app to the taskbar. I\'ve found some code on the Old New Thing that does just that. However, it is in C++.

Answer 1

Using the WindowsAPICodePack (via NuGet) you need code resembling:

// Ensure the handle is available
new WindowInteropHelper(window).EnsureHandle();

// Prevent the window from being pinned to the task bars
var preventPinningProperty = new PropertyKey(
        new Guid("9F4C2855-9F79-4B39-A8D0-E1D42DE1D5F3"), 9);
WindowProperties.SetWindowProperty(window, preventPinningProperty, "1");