CodePlex is Microsoft's open source project hosting web site. You can use CodePlex to create new projects to share with the world, join others who have already started their own projects, or use the applications on this site and provide feedback. A word about Microsoft’s role: Microsoft does not control, review, revise, endorse or distribute the third party projects on this site. Microsoft is hosting the CodePlex site solely as a web storage site as a service to the developer community.