Major update: Microsoft has finalized Windows Vista Service Pack 1 (SP1) and released it to manufacturing. This FAQ has been updated to reflect the final release, and Microsoft’s schedule for getting this code into the hands of its users.
While most Windows service packs are hardly worth discussing, Windows Vista Service Pack 1 (SP1) has been steeped in mystery almost since before Vista itself was completed. With Vista, Microsoft has engineered a new update deployment technology that allows administrators and power users to “slipstream” service packs and other fixes into new Vista installations in a manner that is much simpler than with previous Windows versions. But the real issue with SP1 is in how Microsoft has mishandled the dissemination of information about this release. For this reason, and because there are so many silly rumors floating around, I’ve created a FAQ for Vista SP1 that will be updated as new information is released. If it’s not in this FAQ, it’s just speculation.
Full Article – http://www.winsupersite.com/faq/vista_sp1.asp