Microsoft continues to offer an affordable licensing model to allow for complete scalability of your cost in relation to your usage. Customers purchase a server license for the Windows Small Business Server 2008 Edition of server product they will use and purchase CALs for users or devices accessing the Small Business Server network. The Windows Small Business Server 2008 CAL gives you the right for a device or user to access the server software.MICROSOFT OPEN LICENSE BUSINESSMicrosoft Open License is a software volume licensing program designed for corporate, government, charity, and academic customers who order as few as five licenses. After the initial order, customers can benefit from volume pricing for all licenses for the remainder of the term of their Open License authorization number.Open License Business offers savings on estimated retail prices by placing an initial order for five or more licenses or one server processor license. With Open License Business, customers can combine any set of Microsoft products to qualify for the five-license minimum.