private void RemovePortAuth_Click(object sender, EventArgs e) { NET_FW_IP_PROTOCOL_ ipProtocol; if (tcpOption.Checked) { ipProtocol = NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP; } else { ipProtocol = NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_UDP; } firewall.RemovePortAuthorization(appPath.Text, port.Text, ipProtocol); }