The Microsoft Exchange Server 2007 SP1 SDK has been updated and is now available for your coding pleasure! The Exchange 2007 SP1 SDK is available for download or viewable online. We suggest that you start with the What’s New page to learn about the updates made for the August release. So get rolling on your Exchange development projects with the latest version of the Exchange SDK! And while you’re at it, take some advice from the Autodiscover song.