Microsoft wants to make sure consumers and small businesses know there are myriad ways they can acquire Windows Vista\u2014particularly in premium versions\u2014when it becomes available on Jan. 30.On Thursday, Microsoft is set to announce that, for the first time, users will be able to purchase its Windows OS by downloading it over the Internet.\n\n\n\n\n\n\n\n\n\nOn Jan. 30, various consumer versions of Windows Vista\u2014such as Windows Vista Home Basic, Windows Vista Home Premium and Windows Vista Ultimate\u2014will be available on Microsoft\u2019s Windows Marketplace e-commerce site, said Bill Mannion, director of marketing for Windows. Microsoft Office 2007 also will be available on Windows Marketplace, marking the first time customers can purchase the productivity suite by downloading it.Microsoft has sold games, some of its less-popular applications and partner software on Windows Marketplace, but it previously has not sold its core Windows and Office products there, Mannion said. The company revamped the site in August, adding a new feature called Digital Locker, which keeps track of a customer\u2019s license key online so that software can be downloaded and securely purchased over the Internet. This feature is one of the reasons Microsoft now feels it is safe enough to distribute Windows Vista and Office over the Internet, he said.Microsoft also will make clear on Thursday it\u2019s pushing hard for consumers to buy the premium versions of Vista: Home Premium and Ultimate.The company will announce pricing for a previously revealed consumer upgrade system for Vista called Windows Anytime Upgrade. Microsoft has said it will put all of the versions of Vista on one DVD in packaged form, or on a PC if the OS comes preinstalled. Users will get a product activation key that can activate whatever edition of Vista they purchase, and then can use that to install the OS.However, if a user decides he or she wants to upgrade to a more feature-rich version of Vista than the one originally purchased\u2014for example,\u00a0from Home Basic to Home Premium\u2014Microsoft will allow a customer to pay US$79 for a product activation key for that upgrade rather than requiring that customer to go out and purchase the edition at full price, which for Home Premium would be $159, Mannion said. Finally, Microsoft on Thursday will unveil a promotion through June 30 intended to inspire computer enthusiasts with more than one PC in the home to upgrade more than one computer to Vista. The Windows Vista Family Discount allows a customer who buys the retail boxed version of Ultimate to purchase digital licenses for Home Premium for $49 each that can be installed on up to two other PCs in the home, Mannion said. As mentioned before, the suggested retail price for Windows Home Premium is $159.-Elizabeth Montalbano, IDG News Service (New York Bureau)Related Link:\n\nMicrosoft Windows Vista: The OS Has LandedCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.