Book excerpt: Demystify the move from Windows XP to Windows 7! Professional Windows 7 discusses all of the major new features in Windows 7, describes why the developer would want to use them, investigates the user implications of these new features, and then shows how to develop applications using them. This book focuses on the practical—which features does the developer need to know about immediately to gain the most value from Windows 7. The goal is to create a book that doesn’t waste a lot of pages on fluff or features that the developer will never use. The developer will be able to go to a particular chapter, determine what a new technology requires to use, and the use the sample application as a basis for moving applications to Windows 7 or to create new applications that use Windows 7 features. Describes all the new user interface features and shows how to use them. Demystifies the security features that Windows 7 provides. Shows how to develop efficient applications that rely on 64-bit techniques and parallel processing. Demonstrates the strength of Windows PowerShell and how to create applications for it.