Tip - Break Server Core registry to disallow processing of Run and RunOnce entries
This article will show you how you can disallow processing of Run and RunOnce registry entries. This article applies to Windows Server 2008 Server Core Edition only!
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http://www.windowsnetworking.com/kbase/WindowsTips/WindowsServer2008/AdminTips/Admin/BreakServerCoreregistrytodisallowprocessingofRunandRunOnceentries.html