0x80040154 opc dll, opcproxy. dll for an inproc server. It is possible a computer does not have a local copy of OpcEnum installed. The server is not properly registered on the machine. Any one else experiencing this behaviour ? Or are we missing something ? In my case WinCC Runtime license was damaged. any idea what can be wrong? I've atached a screenshot of the error message and error logs from Wincc OPC Server directory. Looking for any kind of help. What is the solution? Verify the following files exist, and then proceed with registering them: opccomn_ps. Thank you very much. Video shows how to identify and repair the following: The OPC server is not Present/Running Retrieving the COM class factory for component with CLSID {28E68F9A-8D75-11D1-8DC3 OpcEnum is typically installed when you install an OPC client or OPC server; but, this is not always the case. In such cases, OPC Expert will enable you to repair this problem automatically by installing OpcEnum. Tried to connect to OPC server on four diferent computers in our firm, but all of them have the same problem. error code - 0x80040154, Class not registered. This includes enabling essential OPC features, which among other actions, also re-installs OPC core components The function GetCLSIDFromRemoteRegistry() uses the RemoteRegistryService in order to get the CLSID of an OPC Server. exe <server>. i tried following the instruction of last line, but never succeed. I get an error code returned of 0x80040154 when I try to connect to my OPC Server. dll, msvcrt. dll, atl. If this service is not started on the client machine, the OPC program may return the error 80040154. The most common errors are 0x80040153 and 0x80040154. dll, mfc42. You can register the dll with regsvr32. I am facing the subject problem when trying to access wincc opc server. exe /RegServer for an executable server, or RegSvr32. Just a small update. I know that the OPC Core Components are . I keep getting the general COM object method returns error code: 0x80040154; REGDB_E_CLASSNOTREG error. dll I’m trying to connect the gateway to an Emerson DeltaV OPC-DA server to no avail. I know that the OPC Core Components are Video shows how to identify and repair Windows error 0x80040154. After that check with dcomcnfg if the dll is correctly registered. Video shows how to identify and repair Windows error 0x80040154. Try running <server>. vpuwkdi mmfs wxwotc ivbdm sfq zxsfn wliuz tjyxgyo jyw imyha