Bruce Schneier has said that trying to make digital files uncopyable is like trying to make water not wet. With Vista, Microsoft seems to have done a pretty good job of making premium content files not copyable. Now a few readers have tipped us to a new wrinkle: Vista also makes it very, very slow to copy, rename, or delete ordinary files. Here is a Microsoft TechNet thread on the problem. The Reg reports that Microsoft has a hotfix for what sounds like a subset of the more general problem complained about on TechNet; but they will only give it to customers who ask nicely. And a hotfix is fussier to install than a proper patch.