When you run a program that uses Collaboration Data Objects for Exchange Management (CDOEXM) on a computer that is running Microsoft Exchange 2000 Server, the server may stop responding to client requests

When you run a program that uses Collaboration Data Objects for Exchange Management (CDOEXM) on a Microsoft Exchange 2000 Server computer, the server may eventually stop responding to client requests.

When you use System Monitor to view the Private Bytes counter for the process that is associated with the program that uses CDOEXM, you may notice that the memory usage for the process continues to increase.

This problem occurs because of a memory leak in the Cdoexm.dll file.

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.

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, submit a request to 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 has the following prerequisites:

• You must be running Microsoft Exchange 2000 Server Service Pack 3 (SP3). For more information about how to obtain the latest Exchange 2000 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
  301378� How to obtain the latest Exchange 2000 Server service pack
• You must have the August 2004 Exchange 2000 Server post-Service Pack 3 update rollup installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
  870540� Availability of the August 2004 Exchange 2000 Server post-Service Pack 3 update rollup

Restart requirement

You do not have to restart the computer after you apply this hotfix. However, Microsoft Exchange services and Microsoft Internet Information Services (IIS) services are automatically stopped and then restarted during the hotfix installation.

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.

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

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