Download Security Update for Commerce Server 2009 R2 (KB2658676) from Official Microsoft Download Center

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Security Update for Commerce Server 2009 R2 (KB2658676)

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A security issue has been identified in the Commerce Server 2009 R2 that could allow an attacker to compromise your system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.