http://www.extremetech.com/article2/...1931915,00.asp <--link to article
Well, that's exactly what Microsoft is doing with Vista. The whole kernel has been reorganized and rewritten to help prevent software from affecting the system in unsavory ways. In Vista, it should be much more difficult for unauthorized programs (like Viruses and Trojans) to affect the core of the OS and secretly harm your system. That's not all, of course. Microsoft has made it their aim to make life easier on developers by improving and simplifying the way software interfaces with the system and the underlying hardware. Naturally, performance has been a major concern, too.
The new networking stack has a much bigger focus on security, working better with firewalls to allow much finer granularity of which applications can use network resources i
What's more, Media Center will support CableCard in Vista (with appropriate certified hardware), so it's possible to get hi-def TV over cable and not just via over-the-air broadcasts, which is the current limitation with all other PVR software, including Windows XP Media Center Edition.
n which ways, and it's made to stand up a lot better to network attacks. The built-in firewall in Vista is much more robust than the one included in XP Service Pack 2.
The company says that anyone with a high-speed internet connection will immediately notice dramatic improvements in overall download speeds.