Microsoft slaps Vista SP2 beta on Windows Update

As expected, Microsoft Corp. launched the first public beta of Windows Vista Service Pack 2 (SP2) late Thursday, making it available for download from both its Web site and through its update mechanism.

On Tuesday, Microsoft seeded the update to subscribers of its TechNet and Microsoft Developer Network (MSDN) services, and announced it would open the beta on Thursday to anyone interested in trying the preview release.

Vista SP2 is now available in five language-specific editions: English, French, German, Japanese and Spanish. According to a Microsoft spokeswoman, the company won't be issuing the beta in any other languages; instead, 31 additional versions will be available only when SP2 reaches "release to manufacturing," or RTM, status.

Microsoft has not committed to Vista SP2 delivery or RTM dates, but a Web site that has a solid track record of predicting such things said the update would hit RTM in April 2009.

Vista SP2 can be downloaded as a 388MB standalone installer for 32-bit versions or as a 614MB download for 64-bit. A 1.2GB .iso disk image is also available from Microsoft's Web site.

Users can also retrieve and install SP2 through Windows Update, Microsoft's default update service. Although Microsoft claimed that SP2 weighed in at only about 41MB as a Windows Update download (approximately 60MB for the 64-bit edition), Computerworld 's 32-bit downloads via Windows Update tipped the scales at 297MB.

But users must jump through some hoops before they can grab Vista SP2 from Windows Update, Microsoft warned in a document that spells out the process. First, they must download and save a short command script, then rename and run it with administrator privileges. The script, said Microsoft, will "set a registry key on your computer that will enable Windows Update to offer you the Service Pack."

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