Public Shared Function RestartDownloadFromServer(ByVal fileName As String, ByVal serverUri As Uri, ByVal offset As Long) As Boolean
    ' The serverUri parameter should use the ftp:// scheme.
    ' It identifies the server file that is to be downloaded
    ' Example: ftp://contoso.com/someFile.txt.

    ' The fileName parameter identifies the local file.
    'The serverUri parameter identifies the remote file.
    ' The offset parameter specifies where in the server file to start reading data.

    If serverUri.Scheme <> Uri.UriSchemeFtp Then
        Return False
    End If
    ' Get the object used to communicate with the server.
    Dim request As FtpWebRequest = CType(WebRequest.Create(serverUri), FtpWebRequest)
    request.Method = WebRequestMethods.Ftp.DownloadFile
    request.ContentOffset = offset
    Dim response As FtpWebResponse = Nothing
    Try
        response = CType(request.GetResponse(), FtpWebResponse)
    Catch e As WebException
        Console.WriteLine(e.Status)
        Console.WriteLine(e.Message)
        Return False
    End Try
    ' Get the data stream from the response.
    Dim newFile As Stream = response.GetResponseStream()
    ' Use a StreamReader to simplify reading the response data.
    Dim reader As New StreamReader(newFile)
    Dim newFileData As String = reader.ReadToEnd()
    ' Append the response data to the local file
    ' using a StreamWriter.
    Dim writer As StreamWriter = File.AppendText(fileName)
    writer.Write(newFileData)
    ' Display the status description.

    ' Cleanup.
    writer.Close()
    reader.Close()
    response.Close()
    Console.WriteLine("Download restart - status: {0}", response.StatusDescription)
    Return True
End Function

public static bool RestartDownloadFromServer(string fileName, Uri serverUri, long offset)
{
    // The serverUri parameter should use the ftp:// scheme.
    // It identifies the server file that is to be downloaded
    // Example: ftp://contoso.com/someFile.txt.

    // The fileName parameter identifies the local file.
    //The serverUri parameter identifies the remote file.
    // The offset parameter specifies where in the server file to start reading data.

    if (serverUri.Scheme != Uri.UriSchemeFtp)
    {
        return false;
    }
    // Get the object used to communicate with the server.
    FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);
    request.Method = WebRequestMethods.Ftp.DownloadFile;
    request.ContentOffset = offset;
    FtpWebResponse response = null;
    try 
    {
        response = (FtpWebResponse) request.GetResponse();
    }
    catch (WebException e)
    {
        Console.WriteLine (e.Status);
        Console.WriteLine (e.Message);
        return false;
    }
    // Get the data stream from the response.
    Stream newFile = response.GetResponseStream();
    // Use a StreamReader to simplify reading the response data.
    StreamReader reader  = new StreamReader(newFile);
    string newFileData = reader.ReadToEnd();
    // Append the response data to the local file
    // using a StreamWriter.
    StreamWriter writer = File.AppendText(fileName);
    writer.Write(newFileData);
    // Display the status description.

    // Cleanup.
    writer.Close();
    reader.Close();
    response.Close();
    Console.WriteLine("Download restart - status: {0}",response.StatusDescription);
    return true;
}

public:
   // NOT Working - throws a protocolError - 350 Restarting at 8. for args shown in Main.
   static bool RestartDownloadFromServer( String^ fileName, Uri^ serverUri, long offset )
   {
      // The serverUri parameter should use the ftp:// scheme.
      // It identifies the server file that is to be appended.
      // Example: ftp://contoso.com/someFile.txt.
      // 
      // The fileName parameter identifies the local file
      //
      // The offset parameter specifies where in the server file to start reading data.
      if ( serverUri->Scheme != Uri::UriSchemeFtp )
      {
         return false;
      }

      // Get the object used to communicate with the server.
      FtpWebRequest^ request = dynamic_cast<FtpWebRequest^>(WebRequest::Create( serverUri ));
      request->Method = WebRequestMethods::Ftp::DownloadFile;
      request->ContentOffset = offset;
      FtpWebResponse^ response = nullptr;
      try
      {
         response = dynamic_cast<FtpWebResponse^>(request->GetResponse());
      }
      catch ( WebException^ e ) 
      {
         Console::WriteLine( e->Status );
         Console::WriteLine( e->Message );
         return false;
      }

      Stream^ newFile = response->GetResponseStream();
      StreamReader^ reader = gcnew StreamReader( newFile );

      // Display downloaded data.
      String^ newFileData = reader->ReadToEnd();

      // Append the response data to the local file
      // using a StreamWriter.
      StreamWriter^ writer = File::AppendText(fileName);
      writer->Write(newFileData);

     // Display the status description.

     // Cleanup.
     writer->Close();
     reader->Close();
     response->Close();
     // string fileString = System.Text.Encoding.UTF8.GetString(newFileData);
     // Console::WriteLine( sr );
     Console::WriteLine("Download restart - status: {0}",response->StatusDescription);
     return true;
   }