title: How to exclude one controller action from authorize filter in ASP.NET MVC 3?
body: <p>In ASP.NET MVC 3 I can put AuthorizeAttribute inside Global.asax's RegisterGlobalFilters, and it will apply to all controllers' actions. But how can I exclude some controller actions so these actions can be called without the user logging in?</p>
  
  <p>EDIT:</p>
  
  <p>Sorry, additional question, if I add authorize on the class, how can I exclude one action?</p>