title: ASP.NET asynchronous controllers and long polling
body: <p>I've been looking for IIS based solutions for comet/push/reverse-ajax pages, and came upon <a href="http://msdn.microsoft.com/en-us/library/ee728598.aspx#Y945" rel="nofollow">asynchronous controllers</a> </p>
  
  <p>It seems like that allows xhr long polling without the problem of running out of threads, am I correct? Does this allow fairly decent scaling for long polling pages?</p>