An event script that uses CDO version 1.21 does not run as expected in an Exchange Server 2003 environment (918279)

SYMPTOMS

Consider the following scenario. You try to run an event script that uses Collaboration Data Objects (CDO) version 1.21. Additionally, you are trying to run this event script in a Microsoft Exchange Server 2003 environment in which one of the following conditions is true:

You are running Microsoft Exchange Server 2003 Service Pack 2 (SP2).
You have installed the hotfix that is described in the following Microsoft Knowledge Base article:
894470 A meeting is removed from your Outlook Calendar after you accept the meeting and then delete the accepted meeting request

In this scenario, the script does not run in Exchange Server 2003 as expected. Additionally, the following event is logged to the Application log:Event Type: Error
Event Source: MSExchangeES
Event Category: General
Event ID: 11
Date: Date
Time: Time
Computer: Computer_Name
Description: A fatal error (0x8000ffff) occurred in an IExchangeEventSink while processing message [Subject = "xxxx"].
For more information, see Help and Support Center at http://support.microsoft.com.

RESOLUTION

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft Exchange Server 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Hotfix information

This P1 may not contain all the files that you must have to fully update a product to the latest build. This P1 contains only the files that you must have to correct the issues that are listed in this article.

Prerequisites

The following list contains prerequisites for the hotfix:

You must have Microsoft Exchange Server 2003 Service Pack 2 (SP2) installed before you install the hotfix package.

Restart requirement

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

Hotfix replacement information

This hotfix is not replaced by any later hotfix.

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.

File name	File version	File size	Date	Time
Cdo.dll	6.5.7651.26	717,312	30-May-2006	20:16
Exspmsg.dll	6.5.7233.41	8,192	08-Aug-2005	22:02
Updspapi.dll	6.1.22.4	371,936	03-Mar-2005	09:21

MORE INFORMATION

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

824684 Description of the standard terminology that is used to describe Microsoft software updates