Go to Start > Run and type: WINVER , and hit enter. Then click
on "End-User License Agreement" and read it.
Also, open XP's "Help and Support" and type: EULA
and click on "Questions and Answers about the
End-User License Agreement".
Your license to use Windows XP permits you to
install one copy of Windows XP on one computer.
A second installation of Windows XP, installed on
another computer, will require another license.
Additional licenses for Windows XP Professional
http://www.microsoft.com/windowsxp/pro/howtobuy/addlic.asp
How to Change the Product ID in Windows XP
http://support.microsoft.com/default.aspx?scid=kb;en-us;321636
--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User
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| How many machines can I legally install the same copy of
| Win XP on in a home network? Currently have 2, would like
| a third