Why this code doesn't execute?

So, i was trying to make a delay in my program without freezing the GUI, and i got the answer, but now i got another problem.. Why doesn't this code execute well?

  private void activate_b_Click(object sender, EventArgs e)
{
            string cstrike = pathbox.Text;
            if (Directory.Exists(cstrike) && File.Exists(cstrike + @"\config.cfg")) // postoji li cstrike folder & config.cfg
            {
                string config = cstrike + @"\config.cfg";              
                 var t1 = new System.Windows.Forms.Timer { Enabled = true, Interval = 3000 };
                 t1.Tick += (o, a) => { t1.Stop(); status.Text = "Delayed"; };
                 var t2 = new System.Windows.Forms.Timer { Enabled = true, Interval = 3001 };
                 t1.Tick += (o, a) => { t1.Stop(); status.Text = "Delayed1"; };
                 var t3 = new System.Windows.Forms.Timer { Enabled = true, Interval = 3002 };
                 t3.Tick += (o, a) => { t3.Stop(); status.Text = "Delayed2"; };
                backup(config);
            }
            else
                status.Text = "Invalid path";

Why it doesn't execute?