You cannot save an appointment to another user's calendar by using CDOEX in Exchange Server 2003 after you apply hotfix 895949

When you use a Collaboration Data Objects for Exchange (CDOEX)-based program to save an appointment item to another user's calendar in a Microsoft Exchange Server 2003 organization, you receive an error message on the Results page. The error message resembles the following:This problem occurs after you apply hotfix 895949.

Microsoft Office Outlook Web Access clients may receive a different error message. When you try to modify a shared calendar item in Outlook Web Access, you may receive the following message:

This problem occurs because hotfix 895949 introduces a change in the implementation of the "Send As" user right. This change was introduced to give administrators more direct control when they assign the "Send As" user right. 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.

Hotfix installation information

After you apply hotfix 919169, the calendar information that is to be posted to another user's calendar is treated as an IPM.Schedule message class. This grants the user the "Send on behalf of" user right.

Prerequisites

You must install Microsoft Exchange Server 2003 Service Pack 2 (SP2) before you apply the hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Restart requirement

You do not have to restart the computer after you apply the hotfix. However, the Microsoft Exchange Information Store service and all dependent services will be restarted.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The Global 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.

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

For more information about the terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base: For more information about the naming schema for Exchange software updates, click the following article number to view the article in the Microsoft Knowledge Base: