Windows XP Resource Kit

If you are not satisfied with the information provided by the Windows XP "Help and Support",
then you should consider using the
"Microsoft Windows XP Professional Resource Kit Documentation"
( published by Microsoft Press, ISBN 0-7356-1485-7, a book of 1700 pages, recommended price : 59.99 US$ )

It includes in the back a CD-ROM with the electronic version (eBook) of the Resource Kit :

If you can not afford to buy this book or like to evaluate first the content, use the online-version
at www.microsoft.com/reskit :

which brings you to the online-version of the XP Resource-Kit :

where you can navigate in the left window all the chapters of the resource-kit or use "Search" :