Does not work with Vista.Works sometimes with Windows XP.Wireless performance is poor.Wired works OK.So, if you want a wired Windows XP audio extension, it works pretty well.Almost as well as an, ummm, wire.For wireless I recommend theApple Airport Expressover this.For wired, I recommend theXITEL HiFi-Link For PC and Mac(which is discontinued, but available some places as of Aug 24 2008)