C#

string folderToWatch = "C:\\testfolder";
folderWatcher = new FileSystemWatcher(folderToWatch);
folderWatcher.BeginInit();
folderWatcher.EnableRaisingEvents = false;
folderWatcher.Filter = "*.xyz";
folderWatcher.IncludeSubdirectories = false;
folderWatcher.NotifyFilter = NotifyFilters.FileName;
folderWatcher.Created += new FileSystemEventHandler(folderWatcher_Created);
folderWatcher.EndInit();

private class ThreadData
{
        public string m_fileName;
	public ErrorHandler m_errorHandler;
	public int m_threadID;
}

private void folderWatcher_Created(object sender, FileSystemEventArgs e)
{
        // create our data transfer object
        ThreadData data = new ThreadData();
	data.m_fileName = e.FullPath;
	data.m_errorHandler = this.m_errorHandler;

        // create a parameterized thread to upload the file.
        Thread thread = new Thread(new ParameterizedThreadStart(UploadFile));
	thread.Name = JustFileName(e.FullPath);
	data.m_threadID = thread.ManagedThreadId;
	thread.Start(data);
}