Windows Marketplace customers who visit the site now will be bombarded with ads for Windows Vista and Office 2007.

Windows Marketplace customers who visit the site now will be bombarded with ads for Windows Vista and Office 2007.

Home Basic, Home Premium, Business, and Ultimate versions of Vista are all available for digital download.

Home Basic, Home Premium, Business, and Ultimate versions of Vista are all available for digital download.

The Vista page on Windows Marketplace includes a lot of information about the new OS. In this upgrade chart, green dots represent which upgrades can be done cleanly. Conversions noted with a yellow dot cannot transfer files and settings over to Vista.

The Vista page on Windows Marketplace includes a lot of information about the new OS. In this upgrade chart, green dots represent which upgrades can be done cleanly. Conversions noted with a yellow dot cannot transfer files and settings over to Vista.

A new software filter on Windows Marketplace lets users see software specifically developed to run on Vista.

A new software filter on Windows Marketplace lets users see software specifically developed to run on Vista.

After entering billing and user information, a click of the "complete purchase" button makes the new software immediately available to install. Vista and Office 2007 downloads are sponsored by Circuit City.

After entering billing and user information, a click of the "complete purchase" button makes the new software immediately available to install. Vista and Office 2007 downloads are sponsored by Circuit City.

A sample of the Digital Locker, which includes all user-downloaded titles available for installation

A sample of the Digital Locker, which includes all user-downloaded titles available for installation

The digital storefront for Office 2007 is noticeably less glitzy than that of Vista.

The digital storefront for Office 2007 is noticeably less glitzy than that of Vista.