OPC COM Proxy/Stub MergeModule 5.01

OPC COM Proxy/Stub MergeModule by Yokogawa Electric Corporation

A Windows Installer merge module that installs and registers the COM proxy/stub (marshaling) components required for OPC Classic communications on Windows. It enables Yokogawa OPC servers and clients to communicate across processes and via DCOM by providing the necessary interface marshaling, type libraries, and registry entries.

Key points:

• Scope: OPC Classic technologies (e.g., DA, AE, HDA); not applicable to OPC UA.
• Role: Infrastructure only—no user interface and not an OPC server/client by itself.
• Deployment: Typically bundled inside Yokogawa product MSIs; can be merged into installer packages.
• Impact: Required for reliable local/remote OPC Classic connectivity. Removing it may disrupt OPC communications.
• Platform: Windows (x86/x64).

Use this module when deploying Yokogawa software (or third-party OPC Classic clients/servers used alongside Yokogawa products) that rely on COM/DCOM-based OPC communication.

OPC COM Proxy/Stub MergeModule is developed by Yokogawa Electric Corporation. The most popular version of this product among our users is 5.0.

You can check OPC Factory Server, Delta OPC, OPC EasyServer and other related programs like Advanced OPC Data Logger at the "download" section.