DeviceConnection.cs

            while (bytesRead < datastrm.Length)
            {
                int remain = ((int)datastrm.Length - bytesRead);
                if (remain > chunkSize)
                    remain = chunkSize;

                byte[] chunk = new byte[remain];
                datastrm.Read(chunk, 0, remain);
                MemoryStream chunkStrm = new MemoryStream();
                BinaryWriter binWriter = new BinaryWriter(chunkStrm);
                binWriter.Write((uint)(remain + 5));
                binWriter.Write((byte)0x12);
                binWriter.Write(remain);

                binWriter.Write(chunk, 0, remain);

                sendResponse(chunkStrm);
                binWriter.Dispose();

                bytesRead += remain;
            }