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        private void checkForUpdates()
        {
            webservice ws = new webservice();
           
            string _path = ws.checkforMobileUpdates();
            
            
            if (_path.Length > 0)
            {
               
                System.Uri uri = new Uri(_path);

                FtpRequestCreator creator = new FtpRequestCreator();
                WebRequest.RegisterPrefix("ftp:", creator);                

                FtpWebRequest req = (FtpWebRequest)WebRequest.Create(uri);

                req.Credentials = new NetworkCredential("HWSG_SAPFTP", "blubtest");
                
                Stream ftpRequestStream = req.GetRequestStream();
                
                saveFile(ftpRequestStream, "\\Application\\text.cab", FileMode.Create);
            }
        }

        private static void saveFile(Stream inputStream, string outputFile, FileMode fileMode)
        {
            

            FileStream outputstream = new FileStream(outputFile, FileMode.Create);
            int bufferSize = 52048;
            int readCount;
            byte[] buffer = new byte[bufferSize];

            readCount = inputStream.Read(buffer, 0, bufferSize);
            while (readCount > 0)
            {
                //speichern der Daten in der neu erstellen lokalen datei 

                outputstream.Write(buffer, 0, readCount);
                readCount = outputstream.Read(buffer, 0, bufferSize);
            }  
        }