“Centro” is built on Windows Server 2008 and provides an integrated server and management system for midsize businesses. The CTP includes many new Windows Server 2008 Beta 3 based components, as well as updates to the server applications that shipped in “Centro” Beta 1 (updated versions of System Center Essentials 2007, Exchange Server 2007 and ISA, as well as new updates to setup, Active Directory domain join functionality and a host of other improvements).
Please take a moment to read through the hardware requirements below. If you meet these requirements, go to http://connect.microsoft.com, click on Invitations, sign in with your Windows Live ID (Passport ID) and enter the following invite ID; Extr-GHBC-JCJM.