DESC: Small Business Server 2008 Standard Additional 5 User CALs with Software Assurance (SA) is available through the Microsoft Open Licensing Program (MOLP). TO PURCHASE, YOU MUST EITHER: Have a current open license authorization number or Be purchasing a full SBS Standard licensing bundle at this timeMicrosoft SBS 2008 Standard is designed for Small BusinessWindows Server 2008 Standard TechnologiesMicrosoft Exchange Server 2007 Standard EditionWindows SharePoint Services 3.0Windows Server Update Services 3.0Microsoft Forefront Security for Exchange ServerWindows Live OneCare for ServerIntegration with Office Live Small Business Licensing This product comes with 5 User CALs. User CALs are likely to be more cost effective than Device CALs if there are multiple devices per user (for example, a user has a laptop and handheld computer accessing Small Business Server). This product comes with Microsoft's Maintenance Plan, Software Assurance.