title: How can I tell which process I am debugging (attached to multiple processes)?
body: <p>I'm debugging a windows service which has two running instances, by attaching to both instances.  I am doing this because I know only one instance will hit my breakpoint, but I'd like to know which instance that is, so that I don't have to attach to both in future.</p>
  
  <p>Is there a way, when attached to multiple processes, that you can tell which one has hit a breakpoint?  A trial-and-error solution would be to attach one at a time and see if the breakpoint is hit, or, stop one of the services (through services.msc) and see which process ID disappears - but neither solution seems scale-able to me.  Is there a more elegant way?</p>
  
  <p>Thanks!</p>