Microsoft this week released a December Community Technology Preview of Windows Vista, Build 5270. The new version includes a variety of improvements to security, performance, and the user interface. It also includes updated versions of some of the applications that will ship with the operating system reports PC Magazine

The Community Technology Preview features.

Windows Defender- an update to Windows AntiSpyware.
BitLocker – protects data that are at risk from being stolen or lost.
Device Driver Locking – System administrators will be able to block installation of external hard drives, USB flash drives and removable storage devices.
Parental controls – a more effective way to control usage of computers and the Internet by children.
Improved Firewall – includes both inbound and outbound firewall filtering
Internet Explorer 7 – this feature was included in the previous CTP version but this time round it provides added security for international domain names.
Additional features include an updated Windows Media Playe (Windows Media Player 11)r, a Windows Media Center and a caching algorithm called Superfetch.

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