Microsoft KB Archive/818325

= Lotus Notes connector stops responding when it receives a message from an X.400 connector =

Article ID: 818325

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition

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SYMPTOMS
In the following situation, the Microsoft Exchange Connector for Lotus Notes in your Microsoft Exchange 2000 Server may stop responding and you receive an error message from the Dr. Watson utility:
 * 1) An IBM Lotus Notes user sends a message from a Lotus Notes server to another Lotus Notes Server by using Simple Mail Transfer Protocol (SMTP).
 * 2) A reply to this message is sent through an Exchange Notes Connector to an Exchange 2000 computer.
 * 3) The Exchange 2000 computer sends this message to a UNIX server by using an X.400 connector.
 * 4) The UNIX server sends this message to the original sender's Lotus Notes server by using an X.400 connector.
 * 5) The user who originally sent the message receives the recipient's reply message, and then replies to it.
 * 6) The new reply travels back from the originating Lotus Notes server over the X.400 connector to the UNIX server; it then travels over the X.400 connector to the Exchange 2000 computer, and then to the Exchange Notes Connector.
 * 7) On the Exchange 2000 computer, the Lsmexout.exe process quits unexpectedly.



CAUSE
This problem occurs if the country attribute in the X.400 address is larger than the buffer that is allocated for it during the encapsulation of this address. This problem may be caused by a corrupted or an incorrectly formed X.400 domain-defined attribute (DDA). The calling function does not verify the length of the country attribute string before the calling function copies the attribute string into the allocated buffer. As a result, stack corruption occurs, and the Exchange Notes Connector stops responding.



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:

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.

Component: Microsoft Exchange Connector for Lotus Notes

The English 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

28-May-2003 22:44  6.0.6469.0         40,960  Gw2mex.exe 28-May-2003 22:43  6.0.6469.0        110,592  Gwhc.dll 28-May-2003 22:46  6.0.6469.0        868,352  Lsadmin.exe 28-May-2003 22:40  6.0.6469.0        163,840  Lscms.dll 28-May-2003 22:40  6.0.6469.0         73,728  Lslde.dll 28-May-2003 22:40  6.0.6469.0         28,672  Lsldew.dll 28-May-2003 22:40  6.0.6469.0        139,264  Lsmexhc.dll 28-May-2003 22:40  6.0.6469.0        237,568  Lsmexif.dll 28-May-2003 22:42  6.0.6469.0         20,480  Lsmexin.exe 28-May-2003 22:43  6.0.6469.0         40,960  Lsmexnts.exe 28-May-2003 22:43  6.0.6469.0         20,480  Lsmexout.exe 28-May-2003 22:40  6.0.6469.0        118,784  Lsmmdodb.dll 28-May-2003 22:40  6.0.6469.0        200,704  Lsntshc.dll 28-May-2003 22:43  6.0.6469.0         49,152  Lsntsmex.exe 28-May-2003 22:43  6.0.6469.0         49,152  Lsxfm.dll 28-May-2003 22:44  6.0.6469.0         32,768  Mex2gw.exe 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, set the USEX400DDA = NO option in the Exchconn.ini file. To do this, follow these steps:  Open the Exchconn.ini file by using a text editor such as Notepad.

By default, this file is located in the following folder:

C:\Program Files\Exchsrvr\Bin

 In the [LME] section, type the following information: USEX400DDA = NO  Save the file, and then quit the text editor program.



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

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MORE INFORMATION
For additional information about domain-defined attributes, click the following article number to view the article in the Microsoft Knowledge Base:

159292 XADM: &quot;$&quot; in DDA Value Migrated Incorrectly in X.400 PAB Entry

The third-party products that are discussed in this article 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: kbExchange2000preSP4septbarFix dda crashes XCON

Keywords: kbhotfixserver kbqfe kbqfe kbfix kbexchange2000presp4fix kbbug KB818325

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