Pirates are circulating a hack that lets them activate counterfeit copies of Windows Vista using a spoofed server that Microsoft relies on to make sure enterprises switch on the new operating system. The software, loaded with the long name of "Microsoft.Windows.Vista.Local.Activation.Server-MelindaGates" is available on several pirate Web sites. It spoofs a Key Management Service server, one of the two technologies that Microsoft debuted last month that let businesses activate a large number of copies of Windows Vista. KMS requires that at least 25 PCs be connected to a corporation's network. Vista is the first version of Windows that Microsoft requires...