title: Preventing Checkin to trigger multiple Build with TFS 2010
body: <p>I have some Libraries added in my TFS 2010 project in a Lib folder. 
  Each time I check In a dll in the Lib folder, all the build that reference that Lib folder trig automatically (more than 20 Build).</p>
  
  <p>I can use the <code>***NO_CI***</code> to prevent that. But I prefer to have something automatic.
  Is it possible to have an event handler on TFS to prevent that.</p>
  
  <p>Ex. If the check in is on that folder, do not scan all the CI Build Workspaces to trig the build.</p>