Position winform in the bottom left corner of the screen

Question

I am trying to position a form in the bottom left hand corner of the screen (on the start button) I have the following code that attempts to do this, but only takes into account the work area of the screen - so the form is positioned just above the start button:

int x = Screen.PrimaryScreen.WorkingArea.Left + this.Width;
int y = Screen.PrimaryScreen.WorkingArea.Bottom - this.Height;
this.Location = new Point(x, y);

A demo / screen is below to further demonstrate what I am trying to do:

Answer 1

Use Screen.PrimaryScreen.Bounds properties and set this.TopMost = true. this works:

int y = Screen.PrimaryScreen.Bounds.Bottom - this.Height;
this.Location = new Point(0, y);
this.TopMost = true;

Answer 2

The Working area usually excludes any task bar, docked windows and docked tool bars. Using the Screen.PrimaryScreen.Bounds gives you the complete height and width of your screen.

A sample code is as follows :

public Form1()
        {
            InitializeComponent();
            Rectangle r = Screen.PrimaryScreen.WorkingArea;
            this.StartPosition = FormStartPosition.Manual;
            this.Location = new Point(0, Screen.PrimaryScreen.Bounds.Height - this.Height);
            this.TopMost = true;
        }

This most likely will show below the task bar as usually task bar is set to be on top by default. I remember there was an option to turn that option off in Windows XP, not sure though.

EDIT:

In windows XP you can make the taskbar go behind windows. Follow the link : Always on top task bar

As pointed by Ria, setting the this.TopMost to true works and is a better option.