Found very interesting site with weird name shell: revealed that has lots of interesting resources about Vista from the Microsoft’s Windows Client team. For example, there is a Shell Blog featuring highly interesting “artefact” titled A look into the feature design process describing the subject as it is used at Microsoft. Guess what! There is a real Microsoft feature spec for Aero Wizard UI Spec in that post! (as well as IEEE Software Requirements Specification and A Software Design Specification Template). Highly recommended!