Microsoft launches Netflix for Windows Vista Media Center
In other words, Netflix subscribers can browse through the 12,000 streaming titles available in the Netflix "watch instantly" library and watch them from the comfort of a couch using Microsoft's 10 foot interface and a media center remote control.
Users can also manage their DVD rental queue from Windows Media Center. The feature is powered by Microsoft Silverlight, so you'll need to have that installed on your media center system. It won't work with Media Center Extenders, but you can continue to stream movies via an Xbox 360 if you have an Xbox LIVE Gold membership.