title: unique X500 Object Id not being generated, while creating new Attribute in AD schema
body: <p>We am trying to extend the ActiveDirectory Schema to add a couple of variables. When I create an attribute in ADSchema Editor, the unique X500 Object Id is not being generated by default. 
  How to resolve this issue ? With out this unique identifier, we cannot create new attributes in AD.
  Logged in as Administrator, Windows Server 2008 R2</p>