A custom MAPI transport program may not function as expected with Outlook 2002 (321419)

The information in this article applies to:

Microsoft Outlook 2002

This article was previously published under Q321419

SYMPTOMS

If you use a custom MAPI transport program with Microsoft Outlook 2002 (for example, if you use a program that permits you to select the security-level [classification] of an outgoing e-mail message), your custom MAPI transport program may not function as expected.

CAUSE

This problem may occur if your custom MAPI program uses preprocessor functions in a custom MAPI transport provider. This problem may occur even if the IMAPISupport::RegisterPreprocessor method returns the value S_OK becuase Outlook 2002 still may not call the preprocessor function of the custom MAPI transport provider.

RESOLUTION

To resolve this problem, install Microsoft Office XP Service Pack 3 (SP3).

For additional information about how to obtain and install Office XP Service Pack 3, click the following article number to view the article in the Microsoft Knowledge Base:

832671 Description of Microsoft Office XP Service Pack 3

STATUS

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

Modification Type:	Major	Last Reviewed:	3/9/2004
Keywords:	kbQFE kbofficexppresp3fix kbbug kbfix KB321419 kbAudEndUser kbAudITPRO