File ToBase64String

		public static string Serialize(string fileName)
		{
			using (FileStream reader =new FileStream(fileName, FileMode.Open))
			{
				byte[] buffer =new byte[reader.Length];

				reader.Read(buffer, 0, (int)reader.Length);

				string ret=Convert.ToBase64String(buffer);

				reader.Close();

				return ret;
			}
		}