Redistributing NI-DAQmx with a Visual Studio C# project

[jmp80128]

I am not sure where this post should be since I am rather confused about the NI software products.  I don't use Labview and I don't use Measurement Studio.

I am using NI-DAQmx with a custom software application created in Visual Studio 2015 using C# (.net 4.5).  I've installed the drivers and NI development tools on the same PC as VS and everything works fine.  When I install the application on another PC that doesn't have VS it doesn't work because I get an error that the DLLs aren't loading.  I have included  the two DLL files NationalInstruments.DAQmx.dll and NationalInstruments.Common.dll in the project and they get copied to the target PC.  What am I missing?

Does NI require a special, separate installation of the DLLs so they get registered?  If so, what installer should I be using so I don't install all of the development stuff on a target PC?

What about drivers?  I am using the 9217 temperature module and the 9171 single slot USB chassis.

Thanks.

[mfaltin]

Hi jmp80128,

Could you please give us some more information about how you are building the project and how you are including the DLL's in the build?

Also, please provide a screenshot of the error you are getting. Or more information about the error.

-Mitchell | NI

[jmp80128]

In VS I added the two DLLs to project just like a .cs file.  I also added a reference entry for them so the "using" statement in the source files work.  

I have a second PC with VS on it but I have not installed the NI DAQmx software or drivers.  I copied the entire project file to the second PC.  The project included the two DLLs.  When I ran the project an exception was thrown on the step where I configure the task.  Unfortunately I don't have a screen shot of the error.  The error looked like something was loaded.

If I run the installer in NIDAQ1710f0 everything starts to work.  I could run that installer on all of the target PCs that will be running my software.  However, I'd sure like to know what's causing this.  I'm pretty sure I am missing the USB driver but it looks like the main DLLs aren't being recognized.

Speaking of drivers, which is the driver specific to the 9171 chassis?

Thanks,

Jim

[mfaltin]

What error are you getting? Please provide more information about the exception or errors that you are seeing.

Screenshots would be helpful.

[lechapelaing]

Hi,

I am in  the same situation: developing  an application in C#.

Bringing in these two files:

• NationalInstruments.DAQmx.dll
• NationalInstruments.Common.dll

along in my installer seems to work,

However what I am puzzled about is; is it legal and is it the proper way to do it?

When trying to look-up the answer I came across pages from National Instruments'website stating a copyright note should be added somewhere.

Sorry I did not recorded the exact URL of the page  I am referring to,

It' is also highly probable that I misunderstood it.

Thank you!

[lechapelaing]

I came across this other post in a more appropriate board for such question, and will assume it applies to my case! 🙂

Thanks,