title: Send a Message Box to a client in my Domain from C# Windows Form
body: <p>I have got a windows forms project than copying files and folders to clients in my domain. When copying file or copying directory process to [x]clients in my domain. I want to send it a Messagebox that says "There is a new folder or file in your [xdirectory]".</p>
  
  <p>I can't do it by Messenger service because of Messenger service is does not working in XP Sp2 so I need another way for this. Maybe a client/server side application could be make. There will be a listener app in client then I will send it a <code>messagebox.show</code> code then it will show us a messagebox. etc.</p>