Microsoft on Monday accidentally listed the pricing of the high-end consumer versions of Windows Vista on its Canadian website.The Neowin.net blog reported Monday that Microsoft.com Canada posted a price list for Windows Vista Ultimate and Windows Vista Home Premium, but the page was pulled from the website soon after news of pricing leaked.According to Neowin.net, the list quoted the price for Windows Vista Ultimate as 499 Canada dollars\u00a0(US$450.18), while Home Premium will be C$299 (US$269.71). An upgrade to Vista Ultimate will cost C$299 (US$269.71), while an upgrade to Home Premium will cost C$199 (US$179.51), according to the blog.In a statement through its public relations firm, Microsoft acknowledged Monday that it "inadvertently" posted Windows Vista Canadian retail prices on its website, but then removed the information. The company plans to reveal the official U.S. pricing for Vista when it makes the first release candidate of Vista available sometime before the end of September, Microsoft said.Windows Vista Ultimate is a new edition of Windows that includes all of the multimedia capabilities currently available in Windows XP Media Center Edition, as well as a new 3-D graphical user interface called Aero and security features that make it a good fit for small businesses as well, according to Microsoft. Currently, Windows XP Media Center Edition retails for about US$320 or more per copy, so it\u2019s no surprise Windows Vista Ultimate will be more expensive than the highest-end consumer version currently available. Windows Vista Home Premium also will include Windows XP Media Center Edition\u2019s multimedia functionality, as well as the Aero interface. If the Canadian pricing of the OS is akin to what the U.S. pricing will be, it might be a better deal than the comparable version of Windows XP now available.Microsoft has said it plans to urge customers to purchase premium versions of Vista in favor of Windows Vista Home Basic, the entry-level version for U.S. consumers. At the company\u2019s annual Financial Analyst Meeting last month, Kevin Johnson, co-president of Microsoft\u2019s platforms\u00a0and services division, said business users tend to buy the "premium" versions of Windows\u2014which both Windows Vista Ultimate and Home Premium will fall into\u2014more than home users do. However, the company hopes that will change once Vista is available.-Elizabeth Montalbano, IDG News Service (San Francisco Bureau)Related Links:\n\nVista Desktops to Relieve Administrators\u2019 Pain\n\nMicrosoft Releases Patches for Vista OSThis article is posted on our Microsoft Informer page.\u00a0For more news on the Redmond, Wash.-based powerhouse, keep checking in.Check out our CIO News Alerts and Tech Informer pages for more updated news coverage.