How to connect to a COM application?

I am having some trouble talking to a COM application via LabVIEW. I use the "Automation Open" function to browse to the COM application file (.exe). When I run the VI, I get this error message; " Error 3005 occurred at Automation Open: Object specified is not creatable."
I am using labview 2014 evaluation version. I would appreciate any help in this.

Are you talking about an application with a COM interface only or one with an ActiveX interface? ActiveX is build on COM but not the same as it defines several extra aspects of an object server such as a proper typelibrary and automation object factory.
If it is indeed an ActiveX application then it should contain an ActiveX typelibrary that will tell LabVIEW what is available and how to instantiate the objects and how to access the properties and invoke the methods for each object class. Alternatively the applicaton may use a seperate typelibrary file for whatever reason. In that case you should point the LabVIEW browser to that type library instead of the executable itself.
Anothere possibility is that the Automation interface of the application makes use of datatypes that LabVIEW does not support. For instance LabVIEW does not support Generics, so any object that uses generics for instantiation will simply be not available in LabVIEW.
Maybe you cn provide some more information to the application you try to interface to, and also about the type of objects you try to create.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

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