Not to be confused with the Conchango offering, this is eScrum that was developed internally at Microsoft for our internal use, and is now being made available to the public. Included is a process template for Team Foundation Server.

eScrum is a Web-based, end-to-end project management tool for Scrum built on the Microsoft Visual Studio Team Foundation Server platform. It provides multiple ways to interact with your Scrum project: eScrum Web-based UI, Team Explorer, and Excel or Project, via Team Foundation Office Integration. In addition, it provides a single place for all Scrum artifacts such as product backlog, sprint backlog, task management, retrospective, and reports with built-in context sensitive help.

Link to Download details: Microsoft eScrum Version 1.0