Microsoft explains how to create shiny applications for Windows Vista

Create a great-looking Windows Vista application by using the common file dialogs and by providing high-resolution icons, preview controls, and live icons for the shell.

Windows Vista offers a new "look and feel" (user experience) for users, including new common controls, translucent frames, a page navigation paradigm, and a standard search feature. By following the Windows Vista style guidelines, developers can provide their users with a consistent and predictable user experience (a draft version of the Windows Vista style guidelines will be available soon)..