title: What is making Visual Studio hang and how can I prevent it?
body: <p>I'm working on a solution in Visual Studio (v10.0.30319.1) which contains 8 C# projects (WPF Application and Class Libraries).  I've been working on this solution for several months, but yesterday I started having problems with Visual Studio hanging for some time when starting and stopping my app in the debug environment.</p>
  
  <p>I first notice it when I stop the application and VS hangs for around 5 seconds.  I then press F5 to start again and it takes 5-10 seconds to start.  Then I stop the application and it takes about 10 seconds to stop.  The problem subsequently worsens until I reboot the computer (I'm not sure if restarting VS is sufficient - I will test and update the question when it happens again).</p>
  
  <p>Once the computer has been restarted, I cannot replicate the problem, but I know it will creep up on me again today.</p>
  
  <p>While the problem is happening, one of the cores is at 100% usage.  Memory usage for devenv.exe is normal at a bit over 200MB, and not increasing.</p>
  
  <p>The computer is quite powerful and everything else is working correctly so I'm sure it's not a resource issue.</p>