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This is the nine year-old link I've saved for this - Solved: Re: New VI - default window size - NI Community It behaves oddly in that if you change it and close it before saving, it won't prompt you to save. Anyone understand this?

2026 Q3 was released the other day by the way...

Update: I compiled an executable with ShaunR's help. My LabVIEW VI (LV 2017) communicates fine with a simple C++ program, but my executable doesn't. I found a workaround (turn the "keep it simple" boolean off, to use the workaround). Still, I'd like to understand. The C++ sharmemtest.zip uses Microsoft Visual Studio 2015 and boost (version 1.76.0, if it matters). sharmemtest.zip shmem_testr.vi

Just slap an 'Always Copy' node after the constant in the second case and it is all good (LV10). They should probably change the icon of that function to a band-aid. (Of course the number of places you need this is supposedly declining, but it is still good to know for those of us stuck with old versions).