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How to use .NET method with OutAttribute parameter from Labview

I am trying to call a .NET Assembly method from Labview which has the following signature in managed C++,

bool ReadInfo ( [InAttribute] int mobileIndex_, [OutAttribute] Double& fer_, [OutAttribute] Double& ser_);

I can call the this method from other .NET client program (e.g. TestStand) with no problem. In Labview I see the OutAttribute parameters as .NET refnum and I cannot seem to get the values passed back from my assembly.
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This is a known problem in LV 7.x. You are going to need to create some simple accessor methods in the .NET language of your choice I am afraid.

Here is the original thread...
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