Error Loading lvdaq.dll, a Dynamic Link Library (DLL) Initialization Routine Failed

Updated Dec 23, 2023

Reported In


  • LabVIEW
  • Package Manager


  • NI-DAQmx
  • Traditional NI-DAQ

Issue Details

After I open or start LabVIEW, I try to load my program. When it is loading, this error message is displayed: Error loading \LabVIEW x.x\vi.lib\daq\lvdaq.dll. A dynamic link library (dll) initialization routine failed.


This problem can occur with both Traditional NI-DAQ (Legacy) and NI-DAQmx. To solve, follow these steps:
  1. Open NI Package Manager to check if there are any pending updates. Check the Updates tab. If you are prompted to update and reboot, do so now.
  2. Examine the error code to determine which type of DAQ driver triggered the error;  If the path name in the error message contains the folder DAQ after the LabVIEW x.x directory, then it is a Traditional DAQ program. If it contains the folder DAQmx after the LabVIEW x.x directory, then it is a DAQmx program.
  3. Install or repair the Traditional NI-DAQ (Legacy) or NI-DAQmx driver, following the directions on the driver download page. 

Please see the NI-DAQmx and LabVIEW Compatibility Guide  and NI-DAQ and LabVIEW Compatibility Guide for more information on what driver your device supports.

Additional Information

There are typically three reasons why this error may occur: 
  1. You have pending updates for NI software and drivers. A pending update could prevent NI-DAQmx from proper functionality.
  2. The user moving a DAQ program to a new computer with new hardware. It is possible that their new hardware may not be compatible with the Traditional NI-DAQ (Legacy) driver, so your Traditional NI-DAQ (Legacy) code will not work with the new piece of hardware.
  3. You have a corrupted install of the driver you need. In this case, repair the driver in the control panel.