How to pin program to taskbar using C# in Windows 10

Question

How to pin/unpin program to Task Bar in Windows 10 using C#?

Solutions that works for Window 7 are not always working for Windows 10.

Answer 1

I have seen PS solution that works in Windows 10 and here is same solution translated to C#

public static void PinToTaskBar(string filePath)
{
    if (!File.Exists(filePath)) throw new FileNotFoundException(filePath);

    var valueData = Registry.LocalMachine.OpenSubKey(
        @"SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\CommandStore\shell\Windows.taskbarpin");
    var key2 = Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Classes\*", true);
    var key3 = key2.CreateSubKey("shell", true);
    var key4 = key3.CreateSubKey("{:}", true);
    key4.SetValue("ExplorerCommandHandler", valueData.GetValue("ExplorerCommandHandler"));

    var path = Path.GetDirectoryName(filePath);
    var fileName = Path.GetFileName(filePath);

    // create the shell application object
    dynamic shellApplication = Activator.CreateInstance(Type.GetTypeFromProgID("Shell.Application"));
    var directory = shellApplication.NameSpace(path);
    var item = directory.ParseName(fileName);
    item.InvokeVerb("{:}");

    key3.DeleteSubKey("{:}");
    if (key3.SubKeyCount == 0 && key3.ValueCount == 0)
    {
        key2.DeleteSubKey("shell");
    }
}

See Pin program to taskbar using PS in Windows 10