title: .NET 4 Task Class Tutorial
body: <p>.NET 4 has a Class - <a href="http://msdn.microsoft.com/en-us/library/system.threading.tasks.task.aspx" rel="noreferrer">Task</a>.
  It's pretty interesting and I would like to start using it. For example, I would like to create a very simple Task-based files downloader, with the ability to cancel with every download. 
  Can anyone introduce me to some sample code of doing that? I would like to have an list of running tasks and would like to be able to cancel any of them.</p>
  
  <p>P.S. <em>Code sample can be not functioning I just want to know how to use these things in a best way.</em></p>