Kenny Kerr Explores UAC
Kenny Kerr, one of our Security MVPs, has updated his Windows Vista for Developers series with Part4 - User Account Control. Kenny takes an in-depth look at what UAC means for developers and covers areas that a lot of other sources don't touch on, such as integrety levels. This is absolutely worth a read once you begin to write software for Vista. (As are the rest of the articles in his series).