All, I could use your help in identifying what might be going on with one of my applications. I am using LabVIEW 2018 SP1. I've built a app that loops through the com ports and sends a command and looks for a valid response. The code works on my dev computer running Windows 10 and any computer that I install this on with the Windows 10 operating system. When I try to go to install the same program in a PC with the Windows 7 environment, I continue to get the dreaded "insufficient location information or the device is not present" message. I thought VISA might not be installed so I looked at the version that came with my download package and it is using the NI-VISA 15.0 Runtime which, looking at the website, should be compatible with Windows 7. I am at a loss here. Anyone have any ideas on what to look for? I'll get a zip file of the VIs together to send here in a separate post.

LabVIEW

Trying to diagnose COM port issue in Win 7 LV '18

Author

Lindsay,

That makes some sense since my development environment is a Windows 10 64-bit and the executable is being ran on a Windows 7 64-bit machine with the 2018 Runtime engine installed. It must be something deep down that is causing the issues. We're upgrading to 10 so it won't be an issue much longer. I thought it would be something simple.

Thanks to all that helped.