Much of installing and deploying Windows Server 2003 is the same as in Windows 2000. As you will see in this chapter, some changes have occurred, primarily in the way of improvements and extensions to the previous methodologies. Improvements have also been made in the creation of unattended setup files and extensions to RIS to include support for deploying more operating systems, including the Windows Server 2003 server platforms. A new feature that affects installation and deployments, Windows Product Activation, is also discussed, including the differences between deploying with retail and volume product license keys. Finally, we will take a look at what's involved in upgrading to Windows Server 2003, such as supported upgrade paths, deployment methodologies, and considerations for mass upgrades.