Bulk downloader for QR codes using Google Charts API

gistfile1.cs

using System.Diagnostics;
using System.IO;
using System.Web;

namespace Qr
{
    class Program
    {
        static void Main(string[] args)
        {
            var urls = new[] { "http://www.google.com", "http://www.domain.com.au", "http://www.yahoo.com.au" };

            var i = 0;
            foreach (var url in urls)
            {

                var objWebClient = new System.Net.WebClient();
                var requestUrl = string.Format("http://chart.apis.google.com/chart?cht=qr&chs=150x150&chl={0}", HttpUtility.UrlEncode(url));
                objWebClient.DownloadFile(requestUrl,
                                          Path.Combine(new ProcessStartInfo().WorkingDirectory,
                                                       string.Format("a{0}.png", i++)));

            }
        }
    }
}