Archived:nidaq32.dll or nidex32.dll Error When Running My Traditional NI-DAQ Application

Updated May 2, 2018

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Reported In


  • Traditional NI-DAQ

Issue Details

I have developed a program that uses DAQ function calls using the Traditional NI-DAQ driver. I have successfully built this program into an executable and deployed it onto a separate target computer. However, when I run the executable I get the following Windows error message:

Application has failed to start because nidaq32.dll was not found.

I also get messages stating that functions/VIs such as “AI Config” and “AO Config” were not found. Why am I getting these errors and what can I do to get my application working?


The reason you are getting this error is that your program was written in Traditional NI-DAQ, but your target computer does not have the Traditional NI-DAQ driver installed. Even if you have NI-DAQmx installed on the target computer, you will get the Windows error because NI-DAQmx and Traditional NI-DAQ are two independent drivers, each with their own unique DLL’s and functions. 

There are two ways to resolve this error:
  • Install Traditional NI-DAQ on the target computer:
    • Install the driver from the NI Device Drivers CD.
    • Download the most recent version of the Traditional NI-DAQ driver on the Download page.
    • Include the installer as part of your application installer.

However, Traditional NI-DAQ is not supported on 64-bit versions of Windows. If your target is running a 64-bit operating system, review the next suggestion.


  • Update the source code of your program to work with NI-DAQmx:
    Review the Tutorial to aid in migration from Traditional NI-DAQ to the NI-DAQmx driver. NI-DAQmx is supported on 64-bit versions of Windows. 


Additional Information

This article is about NI-DAQ also known as Traditional DAQ (T-DAQ). NI-DAQmx replaced Traditional NI-DAQ in 2003.  NI strongly recommends using NI-DAQmx for new applications.