This document discusses Microsoft interoperability and support with Oracle Fusion Middleware. It covers areas like Windows platform support, .NET interoperability, Office interoperability, and portal interoperability. It provides details on supporting Windows platforms, integrating with Active Directory, consuming and exposing .NET web services, integrating with Microsoft Office, and including Microsoft content in Oracle Portal and vice versa. The document also discusses ongoing efforts around deeper interoperability with technologies like Windows Communication Foundation, Web Services, and identity management.