Upgrading from Gen 7.6 to Gen 8.6 and experiencing 3 problems when using the Client Manager (CM):
1. Every time CM starts it displays the "Client Manager Customization" dialog to specify the language
2. If start as administrator and specify the language can use the CM but when close down and restart it displays the error "Failed to load DLL IEFCMN, reason code 126". When check the installation folder it has deleted the file IEFCMN.DLL.
3. When send test transaction, it works OK but displays the message "Message load failure, id = 16034, error 1813"
CA Gen 8.6 or any other; Windows (all versions)
The root cause was that file iefcmn.ini had incorrect full path for property MSGDLLNAME (default value is "C:\Program Files (x86)\CA\Gen86\Gen\\commrt\cmw32\CMMSGENGn.dll")