http://blogs.msdn.com/b/thelever/archive/2010/06/04/how-to-make-psi-extensions-in-project-server-2010-part-ii.aspxIn this part, we will actually do something useful with the extension service by filling out the skeleton service that was the result of the last post . One of the places where the extension services come in handy is when you want to aggregate data beforeen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/thelever/archive/2010/06/04/how-to-make-psi-extensions-in-project-server-2010-part-ii.aspx#10035207Wed, 07 Jul 2010 03:50:23 GMT91d46819-8472-40ad-a661-2c78acb4018c:10035207Jim Corbin<p>For another approach to doing the same operations, along with complete code, see the Project_Programmability blog article: <a rel="nofollow" target="_new" href="http://blogs.msdn.com/b/project_programmability/archive/2010/07/06/writing-a-psi-extension-for-project-server-2010.aspx">blogs.msdn.com/.../writing-a-psi-extension-for-project-server-2010.aspx</a> </p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10035207" width="1" height="1">