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05/05/2020
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I recently downloaded and installed the OPC Core Components Redistributable (x86) from the OPC Foundation website to enable classic OPC DA scripting via PowerShell. My goal is to use the COM object "opcautomation.dll" in a 32-bit PowerShell script to connect to a GE Proficy iFIX DA server.
However, after installing the MSI (and extracting the ZIP version as well), I cannot locate opcautomation.dll anywhere on my system. I’ve checked the usual paths:
C:\Program Files (x86)\Common Files\OPC Foundation\
C:\Windows\SysWOW64\
I also searched the entire drive but the DLL doesn’t appear to be present.
Could someone confirm:
- Whether OPCAutomation.dll is still included in the latest redistributable?
- If not, is there a separate download or recommended source for obtaining it?
- Any steps I might have missed during installation?
Thanks in advance for your help!
05/30/2017
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It is available as a separate download:
11/04/2025
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Randy Armstrong said It is available as a separate download:https://opcfoundation.org/deve.....apper/ This download cannot be installed, it prompts that it needs to be installed NET Framework 1.1， This is too old, and after decompressing the downloaded file, there is no opcautomation. dll file inside
05/30/2017
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It is source code. You need to build opcautomation.dll with VB6 tools which disappeared 20 years ago.
I assumed that people still wanting to use the VB6 DLL would be running on very old system.
Since you want to integrate with powershell, which is a modern tool, you will need to use the .NET API which does support modern systems:
https://opcfoundation.org/deve.....urce-code/
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