Unable to Load DLL 'Gpib-32.dll' Error in Excel VBA

Updated Nov 5, 2020

Reported In


  • NI-488.2

Issue Details

I am using the NI 488.2 library in Excel VBA. However, the following error occurs only on a specific PC.

Unable to load DLL 'Gpib-32.dll': The specified module could not be found.


This is due to the bitness of Excel. Gpib-32.dll only works with the 32-bit version of the application. Check the information of Excel installed on your PC, and if it is a 64-bit version, you need to change it to a 32-bit version.