Zune.net
system requirements

Component
Required
Recommended
Operating systemMicrosoft Windows 7 (all editions), Windows Vista (all editions), Windows XP with Service Pack 2 (Home, Professional, Tablet PC, or Media Center Edition 2005 with Rollup Update 2), or Mac OS X with Boot Camp running Windows 7, Windows Vista, or Windows XP.

If you're using a 64-bit edition of Windows 7 or Vista, please click here to download the Zune software.

Zune software won't work on versions of Windows earlier than Windows XP SP2, any 64-bit version of Windows XP, or any version of Windows Server.
Windows 7 Home Premium

Visit Windows Update and install any high-priority updates that are available for your computer.
ProcessorA 500Mhz Pentium class processor or betterA 1-gigahertz (GHz) or faster 32-bit (x86)or 64-bit (x64) processor
RAM256 megabytes (MB)1 gigabyte (GB) or higher 32-bit or 2 GB or higher 64-bit
Free hard disk space200 MB16 gigabytes (GB) 32-bit or 20 GB 64-bit
Optical driveCD or DVD driveCD-R drive to play and burn CDs.

DVD-R, DVD+R drive to play and burn DVDs.
Internet accessActive connection (dial-up, cable, DSL, LAN) to buy contentActive broadband connection (cable, DSL, LAN) to buy and stream content.
Sound card16-bit sound card24-bit sound card

Compatible 5.1 multichannel audio sound card to play multichannel audio content.
MonitorSuper VGA (800 x 600) resolution1024x768 or higher resolution
Video cardVideo card with 64 MB of RAM (video RAM or VRAM) and DirectX 9.0b

DirectX 9 graphics processor with WDDM 1.0 or higher driver

For more information about DirectX, visit the Microsoft DirectX web site.

USBUSB 1.1USB 2.0 or better for faster synchronization.
Sound output deviceSpeakers or headphonesSpeakers or headphones
Internet browserMicrosoft Internet Explorer 6 or higherMicrosoft Internet Explorer 7 or higher
Other Wi-Fi network to wirelessly sync your player to your computer without cables.

Xbox 360 console to stream your media collection to your TV or home entertainment system.