static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
StartForm startForm = new StartForm();
DateTime end = DateTime.Now + TimeSpan.FromSeconds(5);
startForm.Show();
while (end > DateTime.Now)
{
Application.DoEvents();
}
startForm.Close();
startForm.Dispose();
Application.Run(new ContainerForm());
}