When Outlook calls GetIdsFromNames on IAttach, Outlook quits or you receive a "MAPI_NO_SUPPORT" error message

This article was previously published under Q331057
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If you are writing a C++ Exchange extension, Microsoft Outlook may quit when it calls the GetIDsFromNames function or the GetNamesFromIDs function on an IAttach interface for a secure message (a signed message or an encrypted message).

If you are running Outlook 2002 Service Pack 2 (SP-2), Outlook may not quit, but you may receive the following error message:
This behavior occurs only when you are working with new messages.
This call is not designed to work on secure messages because named properties are lost during SMIME conversion.
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.The global version of this 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.
     Date         Time   Version             Size   File name   --------------------------------------------------------------   14-Oct-2002  13:10                  2,266,640  Outlook.msp   14-Oct-2002  13:51                  4,141,568  Outlook_admin.msp   14-Oct-2002  13:18                      3,158  Readme.txt				
After the hotfix is installed, the global version of this fix will have the file attributes (or later) that are listed in the following table.
   Date         Time   Version             Size   File name   --------------------------------------------------------------   19-Sep-2002  23:23  10.0.4517.0       105,032  Envelope.dll   12-Oct-2002  00:14  10.0.4608.0       346,696  Exsec32.dll   09-Aug-2002  05:22  10.0.4406.0       137,800  Impmail.dll   13-Sep-2002  05:52  10.0.4510.0       539,208  Outlcm.dll   12-Oct-2002  00:14  10.0.4608.0     6,314,568  Outllib.dll   13-Sep-2002  05:52  10.0.4510.0        92,744  Outlmime.dll   13-Sep-2002  05:52  10.0.4510.0        47,688  Outlook.exe   09-Aug-2002  05:22  10.0.4406.0       121,416  Outlph.dll				
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.
This update was first included in Office XP Service Pack 3. For additional information about the latest service pack for Office XP, click the following article number to view the article in the Microsoft Knowledge Base:
307841 How to obtain the latest Office XP Service Pack

Article ID: 331057 - Last Review: 01/17/2015 15:32:55 - Revision: 3.3

  • Microsoft Outlook 2002 Standard Edition
  • Microsoft Outlook 2002 Service Pack 1 (SP-1)
  • Microsoft Outlook 2002 Service Pack 2
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