Microsoft Windows Server 2003 Inside Out

To distinguish between the use of the terms upgrading and migrating as used in this chapter:

● Upgrading involves installing Windows Server 2003 over the top of an existing Microsoft Windows server installation, maintaining all configuration settings. When you upgrade a server to Windows Server 2003, you maintain all of the existing infor- mation in place. Most applications and services operate just as they did before the upgrade, although a few, Microsoft Internet Information Services (IIS) among them, are somewhat different.

● Migrating involves creating a new installation of Windows Server 2003 and transfer- ring the domain and user settings from another Windows server operating system

(Microsoft Windows NT 4, Microsoft Windows 2000, or Windows Server 2003). Dur-

ing a migration, a new installation of Windows Server 2003 is done, most often on a new machine. Once the operating system is installed, information is moved from the existing server to the new one using migration tools. You can use tools from Microsoft

or a number of third-party vendors such as Aelita and NetPro.