public static void WriteStringToFile(string fileName, string contents) {
         StreamWriter sWriter = null;
         try {
            FileStream fileStream = new FileStream(fileName, FileMode.Create, FileAccess.Write);
            sWriter = new StreamWriter(fileStream);
            sWriter.Write(contents);
         } finally {
            if(sWriter != null) {
               sWriter.Close();
            }
         }
      }
      public static void AppendStringToFile(string fileName, string contents) {
         StreamWriter sWriter = null;
         try {
            FileStream fileStream = new FileStream(fileName, FileMode.Append, FileAccess.Write);
            sWriter = new StreamWriter(fileStream);
            sWriter.Write(contents);
         } finally {
            if(sWriter != null) {
               sWriter.Close();
            }
         }
      }
//csharp/4869