public static string DecompressDataSet(byte[] bytDs)
            {
                string outStr;

                MemoryStream inMs = new MemoryStream(bytDs);
                inMs.Seek(0, 0);
                using (DeflateStream zipStream = new DeflateStream(inMs, CompressionMode.Decompress, true))
                {
                    byte[] outByt = ReadFullStream(zipStream);
                    zipStream.Flush();
                    zipStream.Close();
                    MemoryStream outMs = new MemoryStream(outByt);
                    outMs.Seek(0, 0);
                    outStr = Encoding.GetEncoding(1251).GetString(outMs.ToArray(), 0, outByt.Length);
                }

                return outStr;
            }

            public static byte[] ReadFullStream(Stream stream)
            {
                byte[] buffer = new byte[4096];
                using (MemoryStream ms = new MemoryStream())
                {
                    while (true)
                    {
                        int read = stream.Read(buffer, 0, buffer.Length);
                        if (read <= 0)
                            return ms.ToArray();
                        ms.Write(buffer, 0, read);
                    }
                }
            }

    public   static  String extractBytes( byte [] input)  throws  UnsupportedEncodingException, IOException, DataFormatException
   {
	    byte [] output =  new   byte [ 4096 ];
	    try {
	     // Decompress the bytes
	     Inflater decompresser =  new  Inflater();
	     decompresser.setInput(input,  0 , input.length);
	      int  resultLength = decompresser.inflate(output);
	     decompresser.end();
	     // Decode the bytes into a String
	     String outputString =  new  String(output,  0 , resultLength, "UTF-8");
	      return  outputString;
           } catch  (Exception e) {
    	      return  e.getMessage();
   	   }
   }