The easiest way to hide your IP address in Windows XP is simply to change it, and this page will describe a fast and free method of doing just that. You will still be using your real ISP-issued IP address, but the "hiding" of the old IP address will occur when you update it to a new number.
Reasons for wanting to perform this process may include privacy issues, such as a desire to visit websites without your IP being connected to a previous visit. Or perhaps you'd like to clear any connection that your IP has with a marketing database that tracks surfing behavor. If privacy is your concern, be sure to also clear your browser cookies before AND after updating your IP as well.
*Please be aware that some ISP's may have limitations on the number of times you're allowed to get a new IP. Therefore, to avoid extra charges or service issues, you should probably not use this process more than a few times. If you require a more flexible and fullproof means of hiding your IP address, please check out our homepage.