"The messaging interface has returned an unknown error" error message in Outlook 2000 that is installed in Corporate or Workgroup mode (283175)
The information in this article applies to:
This article was previously published under Q283175 For a Microsoft Outlook 98 version of this article,
see
283174. For a Microsoft Outlook 97 version of this article,
see
172350. NOTE: The procedures in this article only apply if you have installed
Outlook with the Corporate or Workgroup option. With this option, you can use
Messaging Application Programming Interface (MAPI) services. To determine your
installation type, click About Microsoft Outlook on the Help menu. If you have the Corporate or Workgroup installation, you
see "Corporate or Workgroup". SYMPTOMS When you check for new mail, send a fax, or create a new
Calendar item in Outlook, the attempt is not successful and you receive the
following error message: The messaging interface has
returned an unknown error. If the problem persists, start Outlook again.
NOTE: Other actions, such as deleting items from the Calendar, Inbox,
and Contacts may also generate this error message. RESOLUTION This problem may occur if you have exceeded the built-in
.pst size limit. If this is the case, you may be able to work around this
problem by using "Allow upgrade to large tables." This feature is available in
all versions of Outlook 97 since version 8.03.
For additional information about how to allow
upgrades to large tables, click the following article numbers to view the articles in the Microsoft Knowledge Base:
175406
Allow upgrades to large
tables extends limit of PST
180196 Allow
upgrade to large tables extends limit of PST
197430 Allow upgrade to large tables extends limit of PST
If the "Allow upgrade to large tables" does not
solve this problem use the following troubleshooting steps:
- Empty the Deleted Items Folder.
- Use the Inbox Repair Tool.
- Create a New Personal Folders (.pst) File.
- Create a New Profile.
- Install a New Set of MAPI files.
- Reinstall Windows.
How to Empty the Deleted Items Folder If you have a large number of messages in a Microsoft Exchange
Server mailbox and you cannot delete them, empty your deleted items folder to
resolve this problem. To do this:
- On the View menu, click Folder List.
- Right-click Deleted Items, and then click Empty Deleted Items Folder.
How to Use the Inbox Repair Tool- Close Outlook.
- Click Start, point to Settings, and then click Control Panel.
- Double-click Mail and Fax. (If you do not have the fax service installed, double-click Mail.)
- On the Services tab, click Personal Folders, click Properties (make note of the information that is in the Path box), and then click OK.
- Click Start, point to Programs, point to Accessories, point to System Tools, and then click Inbox Repair Tool.
- In the Drives box, type the path of your Personal Folders file that you noted in step 4, click Start, and then click OK after the scan is complete.
- Start Outlook and check for new message, send a fax, or
create a new Calendar item.
If this does not resolve the problem, continue with the
following steps. How to Create a New Personal Folders (.pst) File- Close Outlook.
- Click Start, point to Settings, and then click Control Panel.
- Double-click Mail and Fax. (If you do not have the fax service installed, double-click Mail.)
- On the Services tab, click Personal Folders, click Properties (make note of the information that is in the Path box), and then click OK.
- On the Services tab, click Personal Folders, and then click Remove.
- Click Add, click Personal Folders in the Available information services box, and
then click OK.
- In File name box, type your first name.
For example, if your name is Bob, type Bob, click Open, click OK twice, and then exit Control Panel.
- Start Outlook and check for new messages, send a fax, or
create a new Calendar item.
If this resolves the problem, you can import your information
that is stored in your original Personal Folders (.pst) file. Use
the following steps to import your information:
- On the File menu, click Import and Export.
- In the Choose an action to perform box,
click Import from a personal folder file (.pst), and then
click Next.
- In the File to import box, type the path
of your Personal Folders (.pst) file, and then click Next.
- Verify that Personal Folders is selected as the folder to import from and the folder to import
into, and then click Finish.
If this does not resolve the problem, continue with the
following steps. How to Create a New Profile- On the File menu, click Exit and Log Off.
- Click Start, point to Settings, and then click Control Panel.
- Double-click Mail and Fax. (If you do not have the fax service installed, double-click Mail.)
- Click Show Profiles, and then click Add.
- Click to select the services you use, click Next, and then complete the information for each of the services when
you receive the prompt from the Inbox Setup Wizard.
- When you receive the prompt for the path to your Personal
Folder (.pst) file, click before the "M" (without quotation marks) of the
Mailbox.pst file, type new, and then click Next.
NOTE: Verify that the path information is not selected before you type
new. - Complete the steps in the Inbox Setup Wizard.
- On the General tab, click the name of the profile that you created in the
When starting Microsoft Windows Messaging, use this profile
box, and then click Close.
- Start Outlook and check for new messages, send a fax, or
create a new Calendar item.
How to Install a New Set of MAPI Files If the problem is not resolved, use the following steps to
install a new set of MAPI files:
- On the File menu, click Exit and Log Off.
- Click Start, click Shut Down, click to select the Restart the computer in MS-DOS
mode check box, and then click Yes.
- After your computer restarts, type the following
information at the command prompt: and then press ENTER.
- Use the MS-DOS Rename command to change the current name of
each of the following files:
Mapi.dll Mapi32.dll Mapisp32.exe Mapisrvr.exe Mapiu.dll
Mapiu32.dll Mapix.dll Mapix32.dll Mspst32.dll Mapi32x.dll
For example: - When you finish renaming all of the files above, type
cd.., and then press ENTER.
- Type win, and then press ENTER. This
starts Microsoft Windows and any programs in your Startup folder.
- In Windows, close any programs, click Start, point to Settings, and then click Control Panel.
- Double-click Add/Remove Programs.
- Click Microsoft Office or Outlook, click Add/Remove, insert the Office or Outlook CD-ROM into the drive, and then
click OK.
- Click Reinstall in the Setup maintenance program. This installs
new copies of the MAPI files.
- When the Setup program is complete, restart Windows, start
Outlook, and check for new messages, send a fax, or create a new Calendar
item.
If the problem is not resolved, it is an indication that there
are underlying problems in Windows. It may be necessary to reinstall Windows.
For more information about how to perform this task in Windows, see
your Windows printed documentation or online Help.
Modification Type: | Minor | Last Reviewed: | 8/13/2004 |
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Keywords: | kbhowto kberrmsg kbprb KB283175 |
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