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Error creating the UnCmDrv1.clsCommDriver object in VB6

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I'm running VB6 on a Teradyne UltraFlex .Net 4.0, trying to talk to a MD MAXTC PLC.

I've installed the UnCmDrv1.dll.  I'm trying the following call from both my VB6 program and the "VisionCommDriveExample" provided by you.


I get the following error (see attached file) to this command:


   'Create new instance of the Comm Driver Dll.
   Set mComDriver = New UnCmDrv1.clsCommDriver
basically a "Run-time error '339':  Application-defined or object-defined error"
Any ideas what I'm missing?
Regards, Doug


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