Vista SP1: What You Need to Know before You Deploy
The release of Windows Vista SP1 enables customers to take advantage of improvements that Microsoft and its partners have developed. It's a continuation of Microsoft and its partners' drive to provide the best experience possible. The goal is to address key feedback that Microsoft has received from customers without sacrificing application compatibility. SP1 delivers improvements and enhancements to existing features that significantly affect customers, but it does not deliver substantial new operating system features.