DCOM issue

I connect to a National Instruments OPC server. My simple test app uses an indicator whose ownership DataSocket hardcoded to a tag on the OPC server.

This application works on some machines and on the other the DataSocket will never connect.

I think it's the DCOM problems. I've been comparing all aspects of a working and non-working machine and I found a major difference.

Under the dcomcnfg in the DCOM Config section, a working machine has an entry for 'Engine Variable of National Instruments'. Inactive machines are not.

I don't know how I got this component installed on some machines and not others. If someone could let me know how you install, or added to my package build that I would be grateful.

Thank you

Dave

I solved the problem.

I was publishing the software while building an exe.

When I build a complete installer I was able to add the DataSockets component for the installation package.

Tags: NI Software

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