Windows XP has a built-in feature to prevent piracy. It is known as Windows Product Activation (WPA) and forces activation of the product after a certain number of days. A product called WPA_Kill was developed by pirates to prevent the program from running correctly. This in turn results in allowing someone to avoid activating XP and use it indefinitely. When you download wpa_kill (see
. www.google.com to search for it), your computer may report it as a virus. Proceed with caution.