Great resource for those working with PHP and other F/OSS tech on Windows and IIS. Lots of projects and labs to explore here. (I wish I had been aware of the a couple of weeks ago.)
The Center is dedicated to technical collaborative work to improve interoperability between Microsoft and non-Microsoft technologies. In this site, you will find a live directory of freely downloadable technical interoperability Bridges & Labs and related content such as demos, technical guidance and articles. The vast majority of the projects are Open Source. The Center is run by the Microsoft Interoperability Strategy Group working with the community at large.