C#

private static void CopyFiles(string directoryPath, string destination)
        {
            try
            {
                int count = 0;
                DirectoryInfo dir = new DirectoryInfo(directoryPath);
             //   DirectorySecurity dSecurity = dir.GetAccessControl();
              //  dSecurity.AddAccessRule(new FileSystemAccessRule(??);
               FileInfo[] wordFiles = dir.GetFiles("*.doc*", SearchOption.AllDirectories);
                foreach (FileInfo f in wordFiles)
                {

                    count++;
                    f.CopyTo(destination + count.ToString() + f.Name);
                    Console.WriteLine("***************************");

                    Console.WriteLine("File name: {0} Copied", f.Name);

                    Console.WriteLine("***************************\n");



                }


            }
            catch (UnauthorizedAccessException ex)
            {
 
            }
        }

private BackgroundWorker backgroundWorker;

protected override void OnStart(string[] args)
        {
backgroundWorker = new BackgroundWorker();
                backgroundWorker.WorkerSupportsCancellation = true;
                backgroundWorker.WorkerReportsProgress = true;
                backgroundWorker.DoWork += new DoWorkEventHandler(backgroundWorker_DoWork);
                backgroundWorker.ProgressChanged += new ProgressChangedEventHandler(backgroundWorker_ProgressChanged);
                
                backgroundWorker.RunWorkerAsync();
}

private void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
        {
            
        }

private void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {      
        }