This article has been archived. It is offered "as is" and will no longer be updated.
When you use a store event sink to modify the stream of incoming messages in Exchange 2000, attachments may be missing when you open and view the message in Microsoft Outlook or in Microsoft Outlook Web Access (OWA).
When you view the message in Microsoft Outlook Express or by using Collaboration Data Objects (CDO), you can open and view the attachments in the message.
This problem occurs because messages are incorrectly processed when you use a store event sink to modify the stream of messages in Exchange 2000.
Cumulative Rollup Information
To resolve this problem, obtain the September 2003 Exchange 2000 Server Post-Service Pack 3 (SP3) Rollup. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
824282 September 2003 Exchange 2000 Server Post-Service Pack 3 Rollup
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. Component: CDO
The English version of this hotfix has the file attributes (or later) 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.
Note Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 3 (SP3). For additional information, 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
Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.
For additional information about event sinks in Exchange 2000 Server, click the following article numbers to view the articles in the Microsoft Knowledge Base:
288156 HOWTO: Create an Exchange 2000 Store Event Sink in Visual C++
Microsoft Exchange 2000 Server Standard Edition, Microsoft Exchange 2000 Enterprise Server, Microsoft Exchange Server 2000 Service Pack 1, Microsoft Exchange 2000 Server Service Pack 2, Microsoft Exchange Server 2000 Service Pack 3