Microsoft KB Archive/275186

= &quot;The messaging interface has returned an unknown error&quot; error message when you forward a message in Outlook 2000 SR-1 =

Article ID: 275186

Article Last Modified on 1/29/2007

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APPLIES TO


 * Microsoft Outlook 2000 Service Pack 1

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This article was previously published under Q275186





SYMPTOMS
When you try to forward a message in Microsoft Outlook 2000 Service Release 1 (SR-1), you may receive the following error message:

The messaging interface has returned an unknown error. If the problem persists, restart Outlook.



CAUSE
This behavior occurs if the following conditions are true:
 * Your default delivery location is set to a Personal Folder (.pst) file or you are using Offline Folders (an .ost file).
 * You forward a message in Outlook Rich Text format (RTF) that includes an attachment.
 * You enable the message to be saved in the Drafts folder either by waiting for three minutes or by clicking Save on the File menu.
 * You modify the message after you save a copy in the Drafts folder.
 * You try to send the message or save the message by clicking Save on the File menu.



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 Office 2000 service release 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.IMPORTANT: Before you apply this fix, you must first apply the Microsoft Office 2000 Service Release 1 (SR-1). For additional information about the Microsoft Office 2000 Service Release 1 (SR-1), click the following article number to view the article in the Microsoft Knowledge Base:

245025 How to obtain and install Microsoft Office 2000 Service Release 1 (SR-1)

The English version of this fix for the secure build of Outlook should have the following file attributes or later:

  Date      Time   Size        File name ---  11/20/00  20:35  24,532,244  Out2kmst_admin.msp 11/20/00 16:10   2,489,856  Outlook.msp 11/20/00 16:23   7,081,984  Outlook_admin.msp After the hotfix is installed, the following files will have the listed attributes or later:   Date      Time   Version      Size       File name ---  14/06/00  13:11  1.0.3.27        41,472  Bjablrew.dll 14/06/00 13:12  3.2.0.27        61,952  Bjlog32.dll 14/06/00 13:13  1.0.3.27        93,184  Bjsrch32.dll 07/09/00 01:16  9.0.0.4506     122,931  Contab32.dll_0002 14/06/00 13:14  1.0.3.27       183,808  Emablt32.dll 31/08/00 15:43  5.5.3142.0     154,112  Emsabp32.dll_0005 25/09/00 23:23  5.5.3144.0     594,192  Emsmdb32.dll_0005 24/08/00 00:59  5.5.3141.0     131,344  Emsui32.dll_0005 02/06/00 06:45  9.0.0.4201      86,067  Envelope.dll 11/10/00 20:37  5.5.3147.0     540,944  Exsec32.dll_0005 05/04/00 15:02  9.0.0.4005     192,561  Mimedir.dll 07/07/00 23:07  5.5.3138.0     602,384  Mspst32.dll_0004 07/07/00 23:03  5.5.3138.0     528,656  Mspst32.dll_0005 31/01/00 21:26  9.0.0.3731     196,661  Oladd.fae 23/05/00 11:20                 150,690  Olexchng.aw   30/05/00  14:53                  26,643  Olsec9.chm 22/05/00 19:35                 170,617  Olxchng9.chm 02/06/00 07:43  5.5.3134.0     454,144  Omi9.dll_0001 02/06/00 07:46  5.5.3134.0     548,352  Omint.dll_0001 28/09/00 10:46  8.30.3145.0    782,608  Outex.dll 23/05/00 19:19                 554,068  Outlhlp.aw_0001 19/10/00 00:49  9.0.0.4618   5,324,850  Outlib.dll 19/10/00 00:50  9.0.0.4618   1,675,315  Outllibr.dll 25/09/00 23:17  9.0.4525.0     368,691  Pstprx32.dll_0002 07/07/00 14:41  9.0.0.4307      73,772  Rm.dll 02/06/00 07:30  9.0.0.4201      65,586  Sendto9.dll 19/06/00 14:49  5.5.2652.65    716,560  Cdo.dll 19/06/00 14:12  5.5.2652.65    808,720  Cdo.dll_0004 28/09/00 10:54  5.5.3145.0     792,576  Msmapi32.dll_0001 28/09/00 10:50  5.5.3145.0     623,104  Msmapi32.dll_0002 30/05/00 16:18                 112,128  Out2ksec.mst This fix is also available in the following languages:
 * Spanish (Spain)
 * French
 * German
 * Korean
 * Japanese
 * Chinese (Taiwan)
 * Chinese (PRC)
 * Japanese
 * Thai



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Additional query words: OL2K messaging interface unknown error

Keywords: kbhotfixserver kbqfe kberrmsg kbbug kbpending KB275186

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