This book introduces Microsoft Windows administrators to the world of Open Source applications in order to save time and money. It provides readers with information and techniques for using the appropriate Open Source applications in a variety of situations, such as anti-spam, databases, E-mail, Web content, file sharing, word processing, spreadsheets, and more. By using a component approach in which readers can pick and choose their technologies, the book, for example, enables a Windows administrator to use Apache as a Web server, while still electing Microsoft SQL Server as a database. The focus of the product coverage is to help the administrator to perform more efficiently. The discussion of each option includes: quality of documentation available, how to package for installation in a business setting, and solving common tasks using various techniques. Although it offers an Open Source equivalent to many Microsoft applications, it does not attempt to offer replacements for Windows applications but complements the Windows operational routines.