Install this update to enable new types of Windows Media Center Extenders, such as digital televisions and networked DVD players, to connect to the Windows Media Center PC.

For 32-Bit:Windows Vista Home Premium; Windows Vista Ultimate:-

http://www.microsoft.com/downloads/details.aspx?familyid=af72521d-611c-4eb7-88d3-55c0a52f4a4a&displaylang=en&tm

For 64-Bit :Windows Vista Home Premium; Windows Vista Ultimate:-

http://www.microsoft.com/downloads/details.aspx?familyid=1841de8e-2d81-4991-ac23-06848dc19d6d&displaylang=en&tm