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FIX: When you run Windows Update to scan for updates that use Windows Installer, including Office updates, you may experience a memory leak, or you may receive an error message for the Svchost process
Article ID: 916089 - View products that this article applies to.
NOTICEThe problem that the "Symptoms" section describes was corrected in Windows Update Agent 3.0 and in update 927891. These updates were distributed through Microsoft Update in June and July, 2007. If you are still experiencing a problem that resembles the one that this article describes, it may be a different problem. To troubleshoot similar problems, please see the "Similar problems and resolutions" section later in this article.
Hotfix replacement informationThe hotfix that this article (916089) describes has been replaced by a more recent hotfix (927891). Hotfix 927891 also fixes the problem that is described in the "Symptoms" section.
When you run Microsoft Windows Update to scan for updates or to apply updates to any applications that use Microsoft Windows Installer (MSI) 3.1 together with Windows Update, you may receive the following error message in Event Viewer on a Windows XP-based computer:
Additionally, a memory leak may occur when Windows Update scans for updates that use Windows Installer.
Application popup: svchost.exe - Application Error : The instruction at "0x745f2780" referenced memory at "0x00000070". The memory could not be "read".
These problems may occur when you try to scan for Microsoft Office updates. You may also experience these problems when you use any one of the following update mechanisms:
This problem may occur when the Windows Update Agent tries to scan for Windows Installer updates.
Hotfix informationTo resolve this problem, apply the latest Msi.dll hotfix. This hotfix is described in the following Microsoft Knowledge Base article:
(http://support.microsoft.com/kb/927891/ )You receive an access violation error and the system may appear to become unresponsive when you try to install an update from Windows Update or from Microsoft Update
Hotfix replacement informationThe hotfix that was described in this article (916089) has been replaced by a more recent hotfix (927891). Hotfix 927891 includes the updates that are listed in this article. When Windows Update scans for updates that use Windows Installer, the system may stop responding. Hotfix 927891 resolves this problem.
This problem was corrected in Windows Update Agent 3.0 and update 927891.
This update decreases the duration of a scan that uses the Windows Update Agent. However, a scan is still a CPU-intensive operation. The Svchost.exe process contains the Automatic Updates service. When you perform a scan, the Svchost.exe process can cause CPU usage to reach 100 percent for a prolonged time. For example, Microsoft Office updates use Windows Installer. When Microsoft Office updates are detected, these updates can contribute to 100 percent CPU usage for a prolonged time.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates
If you are still experiencing a problem that resembles the one that this article describes, it may be a different problem. For more information about similar problems and resolutions, click the following article numbers to view the articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/939273/ )You cannot deploy software updates on a computer that is running Windows XP or Windows Server 2003
(http://support.microsoft.com/kb/932762/ )The Service Host process may stop unexpectedly in Windows Server 2003
(http://support.microsoft.com/kb/931852/ )Error messages when you start a Windows XP-based computer and then try to download Windows Updates
(http://support.microsoft.com/kb/910666/ )The Svchost.exe process may end unexpectedly on a Windows Server 2003-based computer
(http://support.microsoft.com/kb/894538/ )When Internet Authentication Service receives an unknown attribute in a packet, a Windows Server 2003-based Internet Authentication Service server stops responding
927385If these articles do not help you resolve the problem or if you experience symptoms that differ from those that this article describes, please search the Microsoft Knowledge Base for more information. To search the Microsoft Knowledge Base, visit the following Microsoft Web site:
(http://support.microsoft.com/kb/927385/ )You receive an error message after a Windows XP-based computer runs an automatic update, and you may be unable to run any programs after you close the "svchost.exe - Application Error" error message dialog box
http://support.microsoft.comThen, type the text of the error message that you receive, or type a description of the problem in the Search Support (KB) field.
Article ID: 916089 - Last Review: October 9, 2011 - Revision: 12.0