Hiding application from taskbar in C#

public class Taskbar
{
    [DllImport( "user32.dll" )]
    private static extern int FindWindow( string className, string windowText );
    [DllImport( "user32.dll" )]
    private static extern int ShowWindow( int hwnd, int command );

    private const int SW_HIDE = 0;
    private const int SW_SHOW = 1;

    protected static int Handle
    {
         get
         {
              return FindWindow( "Shell_TrayWnd", "" );
         }
    }

    private Taskbar()
    {
         // hide ctor
    }

    public static void Show()
    {
         ShowWindow( Handle, SW_SHOW );
    }

    public static void Hide()
    {
         ShowWindow( Handle, SW_HIDE );
    }
}

Another very easy way:

this.ShowInTaskbar = false;