http://blogs.msdn.com/b/healthvault/archive/2009/12/08/healthvault-application-configuration-center-maintenance-thursday-dec-10-2009.aspxApplication Configuration Center is used by developers to configure their applications in our pre-production environment. We will be doing an upgrade and maintenance of this utility on Thursday Dec 10, 2009 between 2-4pm PST . This maintenance will involveen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)