Well, that example comes with Labview. Just follow the path ..examples......in your labview installation dir and you will find it.
Obviously, you will need .NET installed in your PC. Go to microsoft web and download it ( dotnetfx.exe). If you want to go further, download .net fremewok SDK It´ free. In Ni web there are information abour .NET. Search and find.
Hope it helps.
Alipio
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"Qod natura non dat, Salmantica non praestat"
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