hi everyone, i'm trying to do a MQTT client in LabWindows and found somethings on internet like paho project, the prebuild bynaries can be downloaded from this page Eclipse Paho Downloads i've tryed to import the code in CVI and worked correctly, attached the project that works, but i have to build my application in 64 bit and no 32 bit because the .lib and .dll where compiled in 64 bit i suppose. this give me a problem because in my software i use the SQL Toolkit with this provider "Microsoft.Jet.OLEDB.4.0" that works only in 32 bit, i've tryed to use the "Microsoft.ACE.OLEDB.12.0" without success because give me the error in picture do you have any idea about how i can get this works? i have already tryed to install this Microsoft Access Database Engine 2010 Redistributable but the x64 tells me that i already have the x86 installed and can't install another one. in my target PC i have installed the x64 and my software doesn't work for the same problem. i have thinked to try this way Calling a DLL in LabWindows™/CVI™: Explicit Linking vs. Implicit Linking (Dynamic vs. Static) call the .dll explicit and not implicit, can be a good way?

good news, paho release a 32 bit dll that work in CVI with IMPLICIT linking. i think this thread can be closed

LabWindows/CVI

Solved!

Author

I think that it will be enought, in my project I finally used paho and it's 5 year that works good

Davide Vittorio G. - TLGB S.R.L.
Italian SW Developer

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