Microsoft already did almost the opposite when they did the switch from .ini files of old to the registry, by translating the .ini file API into equivalent regi

Microsoft already did almost the opposite when they did the switch from .ini files of old to the registry, by translating the .ini file API into equivalent registry calls. There's no compelling reason why they couldn't do it, although it's probably much more involved than it first appears, and I seriously doubt it's due to the fact "they don't have the balls to take the risk" given many of the security changes introduced in Vista, it's probably just because it's just quite low down on their list of priorities when there's been bigger fish to fry, such as security, performance, and replacing the increasing dated WinForms.