private void PortScan(string Search, int start, int end) { for (int CurrPort = start; CurrPort <= end; CurrPort++) { TcpClient TcpScan = new TcpClient(); tbStatus.Text = "Scanning Port: " + CurrPort; try { TcpScan.Connect(Search, CurrPort); tbInfo.AppendText("\r\n" + CurrPort); } catch { tbStatus.Text = "Port " + CurrPort + " Closed."; } } }