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Latest Vista SP1 build leaks out

Switch to smaller executable may be significant

Microsoft Corp. distributed a new build of Windows Vista’s first service pack last week to its invite-only list of testers, according to bloggers armed with copies. But as is the norm, the version also leaked to BitTorrent networks.

The 6.0.6001.16633 (longhorn.070803-1655) build weighs in at a relatively svelte 684MB, bloggers and message forum users claimed. The first Vista Service Pack 1 (SP1) beta, which leaked earlier this month to BitTorrent peer-to-peer file-sharing networks, was significantly larger — more than 3GB — and came as an .iso file that was, in effect, Vista with SP1 already added. Last week’s build, an .exe file, updates existing Vista installations.

Vista updates — such as security patches and other hotfixes — are normally packaged as .msu files, however, perhaps indicating that 6.0.6001.16633 is not a direct step toward a public release of SP1.

“Surprisingly, the update file is in the .exe format,” said WinBeta last Thursday. “Many (including myself) were expecting Microsoft to deliver the update for Vista SP1 in the new Vista/Server 2008-only .msu format used for current Hotfixes.”

Odd-Magne Kristoffersen, a Norwegian blogger who specializes in Microsoft’s software, posted a series of screenshots today that he claimed show the newest build being installed. “The installation process involves no less than 3 restarts,” said Kristoffersen.

Like the earlier SP1 beta, it appears Microsoft has been unsuccessful in keeping build 6.0.6001.16633 testers in line; Computerworld easily found it on P2P networks.

Microsoft has been mostly mum about Vista SP1; as recently as a month ago, the company quashed rumors that that the beta was just around the corner. It’s official line has been that it will issue SP1 beta “sometime this year.” Many corporations, on the other hand, have taken the advice handed out by analysts, who recommended that companies delay deployment until SP1 is available.