Try reading:
Windows XP Booklist
Microsoft Windows XP Inside Out 2nd ed ISBN 0-7356-2044-X
Microsoft Windows XP Professional Resource Kit 2nd ed ISBN 0-7356-1974-3
Microsoft Windows Command-Line ISBN 0-7356-2038-5
Windows XP Pro 2nd ed The Missing Manual ISBN 0-596-00898-8
Windows XP in a Nutshell, 2nd Edition ISBN 0-596-00900-3
Windows XP Annoyances, 2nd ed ISBN 0-596-00876-7
Windows XP Hacks, 2nd ed ISBN 0-596-0000918-6
Windows XP Solutions ISBN 0-7645-6773-X
Windows XP Speed Solutions ISBN 0-7645-7814-6
Guide to Home Networking ISBN 0-7645-4473-X