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create an interop assembly for .NET 3.5 with LAbVIEW 2013

Hello folks,


I want to know, if it is possible to create a .NET assembly for .NET 3.5 with LabVIEW 2013. According to the LV help, LabVIEW uses .NET 4.0.


One of our customers asked for an application with an .NET interface. For testing purposes I created a small application and a .NET assembly to call the small application. At my local machine all worked well.

But the customer now complains about the .NET version. He is using .NET 3.5 and so can not play and test with my test app.


One possible solution would be go back to LV2011. But I would prefer to use LV2013.



Heinrich Eidloth


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Dear Heinrich-Hans,


you can force LabVIEW 2013 to create interop assemblies in a lower .NET Version by editing the labview.ini . This is described in this article:


Best regards


Andreas Gareis
Senior Applications Engineer, NI
Certified LabVIEW Developer & TestStand Architect
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Dear Angard,


thank you for your answer and the link. I have just tested it, and it is working.


Best Regards


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Could you explain me how to change the .ini? ... the link above is not available,


Thanks in advance.

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