WASHINGTON - Satellite radio company XM Satellite Radio Holdings Inc., announced that XM Radio Online will be included in Microsoft`s new operating system, Windows Vista.

Windows Vista, which will be broadly available on January 30, will offer XM Radio Online as part of its digital music hub. XM Radio Online delivers more than 80 radio channels, including commercial-free music, the Oprah & Friends talk and lifestyle channel, "The Bob Edwards Show," "Opie & Anthony,"stand-up comedy, and children`s programming.

Web users can sign up for a free, three-day trial of XM Radio Online.Unlimited listening is available for $7.99 a month. Those who subscribe to XM Satellite Radio for the car, home, or portable listening can enjoy XM Radio Online for no additional charge.

"XM is pleased to be extending its strategic relationship with Microsoft with the inclusion of XM Radio Online in Windows Vista," said My-Chau Nguyen, XM senior vice president for marketing programs and operations. "By working with Microsoft, we are expanding the availability of XM Radio Online, which provides an extraordinary variety of music choices, talk radio options, and exclusive programming such as `Oprah & Friends.` The integration of XM Radio Online further enhances the music and entertainment experience offered by Windows Vista."

"Microsoft is pleased to be working closely with XM," said Mike Sievert, corporate vice president, Windows at Microsoft Corp. "We are thrilled with XM`s support and excitement for the launch of Windows Vista and the 2007 Office system."