Feche a forma após o tempo fixo
System.Windows.Forms.Timer timer = new System.Windows.Forms.Timer();
private void Form1_Load(object sender, EventArgs e)
{
timer.Interval = 10000;
timer.Tick += new EventHandler(timer_Tick);
timer.Start();
}
void timer_Tick(object sender, EventArgs e)
{
this.Close();
}
Emad Ahmed