Article: Q163243
Product(s): Microsoft Exchange
Version(s): winnt:4.0,5.0,5.5
Operating System(s):
Keyword(s): kbusage exc4 exc5 exc55
Last Modified: 31-JUL-2000
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The information in this article applies to:
- Microsoft Exchange Server, versions 4.0, 5.0, 5.5
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SYMPTOMS
========
When you start the Internet Mail Connector (IMC), you may receive the following
error message:
Error 2140: An internal Windows NT error occurred.
The following event is logged in the application event log:
Event ID: 4018
Type: Error
Source: MSExchangeIMC
Category: Initialization/Termination
Description:
Unable to start the Internet Mail Connector service because
MAPI could not be initialized.
CAUSE
=====
If you receive this error, check the following:
- Verify that Mapisvc.inf is located in the proper folder. It should be in the
%System Root%\System32 folder.
- Verify that the Exchange Service Account has at least change rights on the
Mapisvc.inf file in the <systemroot>\System32 folder.
- Verify that you have a private information store on that server. For more
information, see the following article in the Microsoft Knowledge Base:
Q157042 Event ID 4018 if IMC Started Without Private IS
- Verify that the CommonName and HomeDSA registry entries are present and
valid. They will be listed under:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIMC
\Parameters
For additional information, click the article number below to view the article in
the Microsoft Knowledge Base:
Q147935 XFOR: Behavior of IMC With Invalid Registry Information
Q186739 Events 4018 and 4116 Starting the Internet Mail Service
Additional query words: mapi32
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Keywords : kbusage exc4 exc5 exc55
Technology : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2
Version : winnt:4.0,5.0,5.5
Issue type : kbprb
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