The Software Execution Cannot Proceed Because visa32.dll Was Not Found

Updated Mar 10, 2025

Reported In

Software

  • LabWindows/CVI
  • Measurement & Automation Explorer (MAX)

Driver

  • NI-VISA

Issue Details

I am trying to run a project in LabWindows/CVI. I am able to build my code successfully, however, when I try to run the code I get the message:
The execution cannot proceed because visa32.dll was not found.

Also in NI-MAX (NI Measurement & Automation Explorer) under Devices and Interfaces there is a yellow exclamation mark next to the device.

What steps can I take to find visa32.dll?

Solution

This issue can be caused by NI-VISA not being installed correctly. Follow these steps to try and fix NI-VISA:

  1. Download the latest possible version of NI-VISA. Make sure to check the corresponding release notes for OS and software compatibility.
  2. Uninstall and reinstall your current version of NI-VISA.
  3. Reset NI-VISA as the core VISA library of your system.

Additional Information

If the issue is with the visa32.dll file then repairing the NI-VISA installation will not automatically overwrite this file. The file will only be overwritten in the event that a newer version of visa32.dll is attempting to be installed, which will happen if installing a newer version of the NI-VISA software.

Related Links

Troubleshooting NI VISA, 488.2, Serial, and Modular Instrument Drivers

Other Support Options

Ask the NI Community

Collaborate with other users in our discussion forums



Request Support from an Engineer

A valid service agreement or active software subscription may be required, and support options vary by country.