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PME OPC Test Client: Could not load file or assembly 'OpcRcw.xx'

Within the PME OPC Test Client, when attempting to connect to an OPC client, the software returns the following error: Could not load file or assembly 'OpcRcw.Ae'.. or one of its dependencies. The system cannot find the specified file.

Product Line
Power Monitoring Expert 7.2.x, Power Monitoring Expert 8.x

PME OPC Test Client

This error is caused by the 'OpcRcw.xx' files becoming corrupted. It is unable to load the file or the defined assembly.


**Warning: Take backups of any files prior to modifying them. Ensure the backups are in a location that will not be overwritten (i.e. the Desktop). 

Replace the OpcRcw.xx dll files within the Power Monitoring Expert\system\bin folder by re-running the OPC core components "setup.exe" file to re-copy those dll files. The setup files are located at: '[Power Monitoring Expert Installation Folder]\setup\SetupSupport\OPC'.

The OPC test client software should re-connect to the OPC client server without restarting the 'ION OPC Data Access Server' service.