Middleware Configuration Editor installation location

The Middleware Extensibility Hooks mechanism is installed as a part of standard MES installation on machines where the MES middleware is installed. If default location was used for the MES installation, this application/editor (MWDBMappingEditor.exe) can be found in the following folder on the machine that is hosting the MES host (i.e., the machine that is hosting the Middleware Server):

C:\Program Files\Wonderware\MES\Middleware\

However, the installation path can vary if the MES middleware (MES Host) is installed on a different drive or in a different folder. Therefore, look for this application in your corresponding installation path, which typically ends with \MES\Middleware\.