“The Digital Locker is an upcoming service, now being previewed, that will be released on Windows Marketplace in the Windows Vista timeframe. It allows customers to purchase software online using the familiar shopping cart model, then safely stash their installation files and codes in a secure electronic "vault."  Should the time come for a reinstall, the customer simply logs on to his Digital Locker using Windows Passport and downloads the software and activation codes. No fuss, no muss, no squirreling through drawers for missing CDs.”

For more information, visit http://www.windowsmarketplacelabs.com/ and  http://www.devsource.com/article2/0,1895,1880681,00.asp