Microsoft KB Archive/255255

= Error message loading Excalcon.pgm when installing Calendar Connector for Lotus Notes on AS\400 computer =

Article ID: 255255

Article Last Modified on 11/5/2007

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APPLIES TO


 * Microsoft Exchange Server 5.5 Service Pack 3

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This article was previously published under Q255255



SYMPTOMS
If you try to install the Microsoft Calendar Connector for Lotus Notes on a Lotus Notes version 5.x server that is installed on an AS/400 computer, when you enter the loading command at the Notes server console, you receive the following error message:

Error loading excalcon.pgm

If you modify the command and specify the extension as excalcon.exe, you may receive the following error message:

Error attempting to load excalcon.exe.pgm

Error Unable to invoke program.

Notes users may be able to view the free and busy time of Exchange Server users, but if you send meeting requests from Exchange Server to Notes, you receive an immediate non-delivery report (NDR). However, mail continues to flow.



CAUSE
This issue can occur because the version of the Excalcon.exe file that is supplied on the Microsoft Exchange Server 5.5 Service Pack 3 CD-ROM is designed to run on Intel (i386) or DEC Alpha (Alpha) computers only. This version of the Excalcon.exe file cannot run on AS\400 mainframe computers. If you try to install the Calendar Connector for Lotus Notes on a UNIX computer, you encounter a similar issue.



RESOLUTION
To work around this issue, find another Notes server that is installed on a computer running Microsoft Windows NT or Novell, use that server as the bridgehead server, and install the Calendar Connector for Lotus Notes on that server.



STATUS
Currently the setup for the Calendar Connector for Lotus Notes is not supported on AS\400 or UNIX computers. For more information, refer to the Calcon.rtf file located in the Exchsrvr\Connect\Calcon\Doc folder on the Exchange Server computer that the Calendar Connector for Lotus Notes is installed on.



MORE INFORMATION
In an ordinary installation, the Calcon.exe file is copied from Exchange Server in either the Exchsrvr\Connect\Calcon\Excalcon\I386 or Alpha folder to the Notes server in the NS\C:\notes folder.

The Excalcon.pgm file is not found anywhere in the AS/400 file system. AS\400 uses the .pgm extension to denote a program.

Microsoft continues to update the tools that support interoperability among Lotus Domino R5 and Lotus Domino 6, Microsoft Exchange Server 2003, and Microsoft Windows Server 2003 Active Directory. The updated tools for Lotus Domino replace the following tools that are included with Exchange Server 2003 and with Microsoft Exchange Server 2003 Service Pack 2:
 * Exchange Connector for Lotus Notes
 * Calendar Connector for Lotus Notes
 * Migration Wizard for Lotus Notes

To obtain these tools and to obtain guidance and additional resources, visit the following Microsoft Web site:

http://technet.microsoft.com/en-us/interopmigration/bb403105.aspx

These updated tools provide additional functionality and address several issues that customers reported with earlier versions of the tools.

Additional query words: XFOR

Keywords: kbprb KB255255

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