The Editions of Windows XP
Table i.1 lists the editions of Windows XP (so far); this book covers the Home and Professional editions.
Table i.1. Windows XP Editions
E
DITIONS
D
ESCRIPTION
Home
Minimal budget edition usually bundled with home and small-business PCs
Professional
Includes everything in Home Edition, plus components for power users and network administrators
Media Center
Pro Edition plus digital-media support for video, audio, pictures, movies, and recorded TV (meant more for living rooms than offices)
Tablet PC
Pro Edition plus digital-ink support that lets you use a stylus to write on Tablet PC screens directly
64-Bit
Pro Edition plus support for high-end systems using Intel or AMD 64-bit processors

Table i.2. Features Unique to XP Pro
PROF
EATURE
LETS YOU DO THIS
Domain membership
Join a large group of networked computers that's administered as a unit. (Home Edition PCs can use domain servers and printers but can't be domain members themselves.)
Dynamic disks
Treat multiple hard disks as a single large disk.
Encrypting file system
Encrypt files and folders to keep them safe from intruders.
Internet Information Services
Host and manage simple web sites.
Multilingual support
Dynamically change the language used for input, spell checking, help files, user-interface elements, and other text.
Multiprocessor support
Recognize and use a second processor automatically. (Home Edition will run on a two-processor system but will use only one processor.)
Offline files
Make network files available offline by storing shared files on your laptop so that they're accessible when you're not connected to the network. Reconnecting to the network updates your changes to the network files.
Remote Desktop
Control a remote computer, via internet or LAN, from another computer. Use your home PC to work with all your work PC's data and programs remotely, for example.
Roaming user profiles
Have your personal settings and desktop appear on any networked computer you log on to (not just your personal PC).
User management
Use Group Policy to define and enforce complex disk-, folder-, and file-level security policies by user. (Home Edition has only two simple security levels.)
To find out which edition you're running, choose Start > Control Panel > Performance and Maintenance > System > General tab (or press Windows logo key+Break) (Figure i.1 ).
Figure i.1. This PC is running Windows XP Professional Edition with Service Pack 2 installed; CPU and memory information also appear.
