In a two part on-location special for Defrag Tools, Andrew Richards and Chad Beeder invade Larry Osterman's office on his 31st anniversary at Microsoft. Last week, we talked about his various office moves and the collection of artifacts in his office. This week we continue the visit and do a deep dive in to API Contracts. API Contracts are used to define and package the various Windows 10 SKUs for PC, Phone, HoloLens, Surface Hub, Xbox, IoT, etc. Resources:Larry Osterman's WeblogLarry Osterman on Channel 9