MTPS Content Service is an XML web service that provides access to the content stored in MTPS. This includes, for example, the content available at http://msdn2.microsoft.com/library. Using the MTPS Content Service, developers can integrate documentation, technical articles, whitepapers, images and the other content available from the MTPS system into their own applications.
Announcing the MTPS Content Service
MTPS Content Service Documentation
msdnman - Command-line MSDN documentation viewer