Microsoft documents five misunderstood Windows Vista features ... in PDF format for some reason:

Brief Description
Understanding Their Rationale and How to Make them Work for You
Read about five features of Windows Vista that are often misunderstood, their background and rationale, and the straight scoop on how to deal with them.

Overview
In this article, we will look at five features of Windows Vista that are often misunderstood, provide their background and rationale, and present the straight scoop on how to deal with them. Based on feedback from IT professionals, these features are: User Account Control, Image Management, Display Driver Model, Windows Search, and 64-bit architecture.

Download: Five Misunderstood Features in Windows Vista (PDF)