How can i hide the form1 ? I want that the icon of the form only will be show in the taskbar in the bottom

How can i hide the form1 ? I want that the icon of the form only will be
show in the taskbar in the bottom

public Form1()
{
InitializeComponent();
this.Visible = false;
}
Didn't work so I tried this.Hide();, also didn't work. What am I missing ?