Many "Shutdown occurred" events are logged unnecessarily in the System log for every shutdown on a computer that is running Windows Server 2008 or Windows Vista Service Pack 1

You run Windows Server 2008 or Windows Vista Service Pack 1 on a computer that supports the Intelligent Platform Management Interface (IPMI) standard. An application on the computer uses the Microsoft IPMI driver to schedule system shutdowns. In this scenario, many "Shutdown occurred" events are logged unnecessarily in the System log for every system shutdown. Therefore, if the System log is constrained to a specific size, the additional "Shutdown occurred" events may override important hardware defect messages that were logged previously.

By default, the IPMI driver logs shutdown comments in the System log. However, the IPMI driver allocates only two bytes for the comment text of each event. Therefore, if the comment text is long, it is split into many "Shutdown occurred" events.

To resolve this problem, apply this hotfix, and then follow the instructions in the "Registry information" section.

Hotfix information

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the �Hotfix Request� page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix to a Windows Server 2008-based computer, no prerequisites are required.

To apply this hotfix to a Windows Vista-based computer, you must have Windows Vista Service Pack 1 installed on the computer. For more information about Windows Vista service packs, click the following article number to view the article in the Microsoft Knowledge Base:

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

Registry information

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: After you apply the hotfix, disable the comment text for "Shutdown occurred" events. To do this, follow these steps:

1. Open Registry Editor. To do this, click Start, type regedit in the Start Search box, and then press ENTER.
2. Locate and then right-click the following registry subkey:
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\IPMI
3. Point to New, and then click DWORD Value.
4. Type DisableSELShutdownComment, and then press ENTER.
5. Right-click DisableSELShutdownComment, and then click Modify.
6. In the Value data box, type 1, and then click OK.
7. Exit Registry Editor.
8. Restart the computer.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista and Windows Server 2008 file information notes

• The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

  Version	Product	Milestone	Service branch
  6.0.6000.16xxx	Windows Vista	RTM	GDR
  6.0.6000.20xxx	Windows Vista	RTM	LDR
  6.0.6001.18xxx	Windows Vista SP1 and Windows Server 2008 SP1	SP1	GDR
  6.0.6001.22xxx	Windows Vista SP1 and Windows Server 2008 SP1	SP1	LDR

• Windows Server 2008 Service Pack 1 is integrated into Windows Server 2008.
• The MANIFEST (.manifest) files and MUM (.mum) files that are installed for each environment are listed separately. MUM and MANIFEST files and their associated security catalog (.cat) files are critical to maintaining the state of the updated component. The security catalog files are signed with a Microsoft digital signature. The attributes of these files are not listed.

All supported x86-based versions of Windows Server 2008 and of Windows Vista

All supported x64-based versions of Windows Server 2008 and of Windows Vista

All supported Itanium-based versions of Windows Server 2008

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

Additional file information for Windows Server 2008 and for Windows Vista

Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista

Additional files for all supported x64-based versions of Windows Server 2008 and of Windows Vista

Additional files for all supported Itanium-based versions of Windows Server 2008