title: Running winforms app from debugger disables alt-tab switching to form
body: <p>I have a Winforms app with a main form where a multiline text box is updated during a long running process.</p>
  
  <p>I would like to be able to use the ALT-TAB facility of Windows to switch away from the Visual Studio 2012 IDE to watch the form being updated as the app runs.</p>
  
  <p>Is there some option that controls this? If I have other apps running such as Notepad I can toggle away from the IDE but navigating in this way to the running Winforms app seems to be disabled. </p>
  
  <p>Last time I debugged an app like this I recall this sort of switching worked but sometimes there was a lag in the rendering of the screen. </p>
  
  <p>The winforms app is not multithreaded.</p>
  
  <p>Any ideas?</p>