{


    static void Main(string[] args)
    {
        const string host = "xxxx";
        const string username = "xxxx";
        const string password = "xxxx";
        const string workingdirectory = "xxxx";
        const string RemoteFileName = "xxxx";
        const int port = 22;

        Console.WriteLine("Creating Client and Connecting");

        Stream stream;
        using (var client = new SftpClient(host, port, username, password))
        {
            client.Connect();
            Console.WriteLine("Connected to host");

            client.ChangeDirectory(workingdirectory);
            Console.WriteLine("Changed directory to {0}", workingdirectory);

            var listDirectory = client.ListDirectory(workingdirectory);
            Console.WriteLine("Listing directory:");
            foreach (var fi in listDirectory)
            {
                Console.WriteLine(" - " + fi.Name);
            }

            stream = new MemoryStream();
            client.DownloadFile(RemoteFileName, stream);

            client.Disconnect();
        }

        if (stream != null)
        {
            if (!stream.CanSeek)
            {
                throw new Exception("Won't work :(");
            }