Programatically closing a Toolwindow created using CreateToolWindow2

toolWins = (Windows2)_applicationObject.Windows;

// Create the new tool window, adding your user control.

toolWin = toolWins.CreateToolWindow2(_addInInstance,

asmPath, ctlProgID, "MyNewToolwindow", guidStr,

ref objTemp);

// The tool window must be visible before you do anything

// with it, or you will get an error.

if (toolWins == null)

{

toolWin.Visible = true;

}

// Uncomment the code below to set the new tool window's

// height and width, and to close it.

// System.Windows.Forms.MessageBox.Show("Setting the height

// to 500 and width to 400...");

// toolWin.Height = 500;

// toolWin.Width = 400;

// System.Windows.Forms.MessageBox.Show

// ("Closing the tool window...");