The value of Microsoft's Software Assurance (SA) has always been tied to the promise of new version upgrades for covered software. So, how should enterprises assess the value of this maintenance subscription now that no new updates are on the horizon? The recent release of Windows Vista, Microsoft Office 2007, and Exchange Server 2007 will change the buying criteria for SA. Identify if ongoing coverage makes sense for the enterprise. Use this tool to effectively determine if SA still makes sense for the enterprise.