For a book about Windows, this book has surprisingly little Windows specific information in it. The first chapter, on installation, is Windows specific. But then it doesn't go Windows specific until about 3/4s of the way through the book in section three, where it talks about COM, ADO, Active Directory and a couple of other Windows-specfic technologies. It's a short book, so the mid-section which is not Windows specific is a general reference for PHP. It's a brief reference though, weighing in at less than 100 pages, where other books (PHP and MySQL Web Development) spend over 150 pages on just the basics. I can't recommend this book unless you have a specific need for introductory information on PHP installation for Windows, or use of Windows specific back-end technologies like COM, ADO or the Active Directory.