Article ID: 817375
Article Last Modified on 10/26/2006
APPLIES TO
- Microsoft Exchange 2000 Server Standard Edition
- Microsoft Exchange 2000 Enterprise Server
SYMPTOMS
When you start the Mailbox Management process in Exchange 2000, the following event is logged to the application event log:
CAUSE
This problem occurs if both of the following conditions are true:
- You run a MAPI program, such as ARCServe 2000 Backup Agent, on the Exchange 2000 server.
-and-
- The MAPI program impersonates a user account at runtime. The user account that the program impersonates is a different user account than the user account that starts the program. For example, the process runs under the context of the Local System account and is initialized under the context of the Administrator account.
In this situation, a problem exists with the Mapi32.dll component where the Exchange profiles for the user accounts are incorrectly deleted from the registry after the MAPIInitialize function is called. Even though the registry keys that store the Exchange profiles are the same, the shared memory sections that are used to determine if a profile is in use are different. However, in versions of Mapi32.dll that are earlier than 6.0.6448.0, the same shared memory is used. As a result, Exchange profiles are deleted from the following key in the registry, and the Mailbox Management process does not start correctly:
HKEY_USERS\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem
RESOLUTION
Cumulative Rollup Information
To resolve this problem, obtain the September 2003 Exchange 2000 Server Post-Service Pack 3 (SP3) Rollup. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
824282 September 2003 Exchange 2000 Server Post-Service Pack 3 Rollup
Hotfix Information
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 Microsoft Exchange 2000 Server service pack 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:
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.
Component: MAPI
Note Before you apply this hotfix to the server, you may have to stop all third-party services that load the Mapi32.dll component. To determine which services load Mapi32.dll, use the Task List Viewer (Tlist.exe) command-line tool. To do so:
- Click Start, and then click Run.
- In the Open box, type cmd, and then click Open.
- At the command prompt, type the following command, and then press ENTER:
The services that load Mapi32.dll are listed in the Cmd.exe window.
tlist -m mapi32.dll
After you apply the hotfix, restart the third-party services that you stopped.
The English version of this hotfix 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 ----------------------------------------------------- 31-Mar-2003 23:34 6.0.6448.0 745,472 Mapi32.dll
Note Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 3 (SP3). For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
301378 How to Obtain the Latest Exchange 2000 Server Service Pack
WORKAROUND
To work around this problem, do one of the following:
- Restart the Microsoft Exchange System Attendant service. To do so:
- Click Start, point to Administrative Tools, and then click Services.
- In the right pane, right-click Microsoft Exchange System Attendant, and then click Restart.
- When you are prompted whether you want to restart the services that are listed in the Restart Other Services dialog box, click Yes.
-or-
- Restart the server.
When you do so, the MAPI profiles are re-created in the registry.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
MORE INFORMATION
The Task List Viewer (Tlist.exe) tool is included with the Microsoft Windows 2000 Support Tools. For additional information about how to install the Windows 2000 Support Tools, click the following article number to view the article in the Microsoft Knowledge Base:
301423 HOW TO: Install the Windows 2000 Support Tools to a Windows 2000 Server-Based Computer
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
Additional query words: MAPIInitialize() kbExchange2000preSP4septbarFix
Keywords: kbhotfixserver kbqfe kbqfe kbfix kbexchange2000presp4fix kbbug KB817375
