These are the features
Windows XP Home Edition
1 Contains basic support for security among multiple use
2 Built-in support for peer-to-peer networking, but only for up to five computers.
3 The backup utility is not installed by default, but is included on the CD.

Windows XP Professional Edition

Includes extended support for security between multiple users on the same machine.
Better support for peer-to-peer networking, plus support for joining a "Windows NT domain."
The backup utlity is installed by default.
The Professional edition includes the following components not found in the Home edition:
o Administrative Tools (in the Start Menu and Control Panel)
o Automated System Recovery (ASR)
o Boot Configuration Manager
o DriverQuery
o Group Policy Refresh Utility
o Multi-lingual User Interface (MUI) add-on
o NTFS Encryption Utilitiy
o Offline Files and Folders
o OpenFiles
o Performance Log Manager
o Remote Desktop
o Scheduled Tasks Console
o Security Template Utility
o Taskkill
o Tasklist
o Telnet Administrator
* Provides support for multi-processor systems (2 or 4 CPUs), Dynamic Disks, Fax.

kya research hai yaar......welldone pc boy

Thanks