Cause 0x80070422 (-2147023838) DCOM error appears in the OPC Client application when it fails to start (launch) an OPC server. Microsoft describes this error as ERROR_SERVICE_DISABLED.
Symptoms You will fail to start (launch) and connect to the OPC server. The Windows event log may also have a record of this error.
Background Some OPC servers are configured to execute as a Windows service. However, this service, or one of its dependencies, may be disabled for a variety of reasons.
Repair Procedures For the complete step-by-step repair procedure to fix this DCOM error, download the complete whitepaper.
For automated troubleshooting, refer to OPC Expert, a software application to troubleshoot OPC connections. If OPC Expert fails to connect, it automatically informs you of the problem, diagnoses the cause, and suggests a solution. OPC Expert is free to download, does not require installation, and does not make any changes to Windows registry, so it is safe to use on your computer. Download at www.OpcExpert.com.
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