XCON: "Ordinal 136" Error Occurs When Starting the MTA

• Microsoft Exchange Server, version 4.0
• Microsoft Outlook 97

SYMPTOMS

You may receive the following error message when starting the Microsoft Exchange Message Transfer Agent (MTA) service:

   Ordinal 136 could not be located in the dynamic link library Mapi32.dll.

   Emsmta.exe failed to initialize properly.

CAUSE

This error may occur if the installed Mapi32.dll on the System32 NT subdirectory is not a compatible version for Microsoft Exchange Server. To correct this problem, copy the Mapi32.dll located in the Setup\<platform> directory on the Microsoft Exchange Server compact disc.

MORE INFORMATION

This error may occur if you have installed ARCserve 2.01 for Windows NT. This tape backup product installs a version of Mapi32.dll that is incompatible with Microsoft Exchange Server.

Another possible cause for this error message is if Eudora is installed and it is replacing the .DLL. The resolution is to enable the 'Never' option in Eudora

If MAPI is not set to 'Never' in Eudora, Eudora backs up the Mapi32.dll, then replaces/edits the file. This causes Outlook to be unable to read this dll causing the error message. Removing Outlook and reinstalling as well as renaming and copying a new version of Mapi32.dll will fix the problem temporarily.

To verify that this MAPI is set to 'Never' do the following in Eudora:

Choose Tools-Options then set MAPI to 'Never'

This will stop Eudora from editing the Mapi32.dll

STATUS

ARCserve and Eudora are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these product's performance or reliability.