Not a C# expert but I believe you can compile using 'Any' as the platform so the same library will work in 32/64 bit.

Hi Roland,

Thanks, I'm not an expert either, more like a noob. I've tried that option in the past in several of our .Net stuff with mixed results. For now my conclusion is that it's better to simply do two compilations (until I know more about it). Our pb apps are 32 bit and things only worked as long as we set "Prefer 32 bit" in the build options.

I think it is more like an option that checks if you're running windows 32 or 64. (correct me if I'm wrong).

This seems to shed some light:

https://stackoverflow.com/questions/12066638/what-is-the-purpose-of-the-prefer-32-bit-setting-in-visual-studio-and-how-does

regards

"Any CPU" compile in .NET is not really giving you both simultaneously on the same machine. "Prefer 32-bit" is basically no different than just doing standard 32-bit compile... in other words, you don't have 64-bit so it'll work fine for the PB IDE but not runtime. You can read this Stack Overflow thread to understand more about the Any CPU compile options: https://stackoverflow.com/questions/12066638/what-is-the-purpose-of-the-prefer-32-bit-setting-in-visual-studio-and-how-does/12066861#12066861

Long story short, if you are developing 64-bit apps with PB you will need both 32-bit and 64-bit versions of the DLLs for now.