http://blogs.msdn.com/descapa/archive/2006/09/10/748781.aspxI was reading the The Unknown OneNote Guy's Blog on his/her post about A Look at GetHierarchy() Part II and there was something that stood out that I wanted comment on that I haven't mentioned before, here is what I read: The id attribute for my OneNoteenCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/descapa/archive/2006/09/10/748781.aspx#749612Mon, 11 Sep 2006 19:00:41 GMT91d46819-8472-40ad-a661-2c78acb4018c:749612OneNote GuyFor what its worth - it would be &quot;his&quot; post. &nbsp;Thanks for the info on IDs and Guids. Response is located here: <br><a rel="nofollow" target="_new" href="http://unknown-onenote.blogspot.com/">http://unknown-onenote.blogspot.com/</a> <br>