The W3wp.exe process causes 100% CPU utilization on Management Servers in MOM 2005

The W3wp.exe process causes 100% CPU utilization on a Microsoft Operations Manager (MOM) 2005 Management Server in the destination management group. Product connectors that are accessing the MOM Connector Framework may receive the following exception error message:After these symptoms occur, data is not forwarded from the management group. W3wp.exe is a worker process for Microsoft Internet Information Services (IIS).

This problem occurs if the following conditions are true:

• A MOM 2005 product connector uses the MOM Connector Framework from multiple management groups.
• The MOM 2005 product connector is configured to forward discovery data to the destination management group.
• The W3wp.exe process is running on the MOM Management Server.

Another problem with the MOM Connector Framework occurs if the error message description includes special characters or invalid characters.

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Operations Manager 2005. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Hotfix information

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 this specific problem. 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

This hotfix must be applied to each computer that meets all the following criteria:

• The computer hosts a MOM 2005 Management Server.
• The computer has the MOM Connector Framework installed.
• The computer is a member of a destination or source management group.

Restart requirement

You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

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 tool in Control Panel.

Hotfix installation information

To apply this hotfix, follow these steps:

1. Create a shared folder that the MOM 2005-based servers in your network have access to.
2. Copy the Mom2005-rtm-kb883925-x86-enu.exe file to the folder that you created in step 1.
3. On each MOM 2005-based computer that meets the Prerequisites criteria, log on to the computer by using an account that has administrative permissions.
4. Connect to the shared folder that you created in step 1, and then run the Mom2005-rtm-kb883925-x86-enu.exe file.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Operations Manager 2005 Service Pack 1.

For more information about other problems that are resolved by Microsoft Operations Manager 2005 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base: For additional information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base: