public static void PostTweet(string username, string password, string tweet)
       {
           try
           {
               string user = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(username + ":" + password));
               byte[] bytes = System.Text.Encoding.ASCII.GetBytes("status=" + tweet);
               HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://twitter.com/statuses/update.xml");
               request.ServicePoint.Expect100Continue = false;
               request.Method = "POST";
               request.Headers.Add("Authorization", "Basic " + user);
               request.ContentType = "application/x-www-form-urlencoded";
               request.ContentLength = bytes.Length;
               request.UserAgent = "MyApp";
               Stream reqStream = request.GetRequestStream();
               reqStream.Write(bytes, 0, bytes.Length);
               reqStream.Close();
           }
           catch (Exception ex) {/* DO NOTHING */}
       }

csharp

1

post tweet

public static void PostTweet(string username, string password, string tweet)
       {
           try
           {
               string user = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(username + ":" + password));
               byte[] bytes = System.Text.Encoding.ASCII.GetBytes("status=" + tweet);
               HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://twitter.com/statuses/update.xml");
               request.ServicePoint.Expect100Continue = false;
               request.Method = "POST";
               request.Headers.Add("Authorization", "Basic " + user);
               request.ContentType = "application/x-www-form-urlencoded";
               request.ContentLength = bytes.Length;
               request.UserAgent = "MyApp";
               Stream reqStream = request.GetRequestStream();
               reqStream.Write(bytes, 0, bytes.Length);
               reqStream.Close();
           }
           catch (Exception ex) {/* DO NOTHING */}
       }

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• c#, 
• twitter, 
• web