Microsoft announced the release of more interoperability information, including legacy, Office binary file formats. The updated protocol information is available here, on the MSDN (Microsoft Developer Network).
Microsoft also released final protocol information for 2007 versions of Exchange Server, Office 2007 and SharePoint Server. The information moves “from preliminary to 1.0 stage,” Craig Shank, Microsoft’s general manager of Interoperability, told me on Friday. “We’re at a stage where we have a high degree of confidence in it.”