C#

bool bContinue = true;
public frmProgressBar(string Message)
{
	InitializeComponent();
	this.ShowInTaskbar = false;
	lblMessage.Text = Message ;
	backgroundWorker = new BackgroundWorker();
	backgroundWorker.DoWork += new DoWorkEventHandler(backgroundWorker_DoWork);
	backgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler (backgroundWorker_RunWorkerCompleted);
}

//This is called when my main window is resized event us fired
private void setWindowStateAccordingToMainForm(FormWindowState State)
{
	if (this.InvokeRequired)
	{
		setWindowState d = new setWindowState(setWindowStateAccordingToMainForm);
		this.Invoke(d, new object[] { State });
	}
	else
	{
		if ((State == FormWindowState.Maximized) || (State == FormWindowState.Normal))
		{
			if (!this.IsDisposed)
			{
				WindowState = FormWindowState.Maximized;
				Show();
			}
		}
		else if (State == FormWindowState.Minimized)
		{
			if (!this.IsDisposed)
			{
				WindowState = FormWindowState.Minimized;
				Hide();
			}
		}
	}
}

void backgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
	this.Close();
	this.Dispose();
}

void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
	while (bContinue)
	{
	}
}