This video shows how to identify and repair OPC/DCOM error 0x80004002.


  • Browsing fails through OPC Rescue or other client with OPC/DCOM error 0x80004002
  • Start OPC Expert
  • Open “This Computer” and browse available OPC Server
  • Identify browsing error in the event window
  • On the top ribbon, select Tools and open the Options window
  • Check “Enable essential OPC features”
  • OPC Expert repaired error 0x80004002

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