To follow along with the examples presented in this book, you need a PC with a Pentium (or equivalent) processor running at 120 MHz or faster, with Windows 9x, Windows 2000, Windows NT4 (with SP 4 or later), Windows Me, or Windows XP. You need at least 32MB of total RAM installed on your computer. For best performance, I recommend at least 64MB. You also need a CD-ROM drive, an Internet connection to obtain a software key code, and an e-mail address to which the key code can be mailed. (An Internet connection is not required after you obtain the key code).