private void pingSocket(String s) {
		Socket socket = null;
		PrintWriter out = null;
		try {
			socket = SocketFactory.getDefault().createSocket("localhost", PORT_LAUNCH);
			out = new PrintWriter(socket.getOutputStream(), true);
			out.println(s);
		}
		catch (Exception e2) {
			e2.printStackTrace();
		}
		finally {
			if (out != null)
				out.close();
			if (socket != null) {
				try {
					socket.close();
				}
				catch (IOException ex) {
				}
			}
		}
	}