I had a similar problem: I had LabVIEW 8.0.1 on a computer and I ran 8.0.1 builds from another computer. Then I loaded LV 8.2.1 on the computer and my old programs built with LV 8.0.1 couldn't talk to my Compact FieldPoint 1808 module.
I tried to load support for 8.0 when I installed LV 8.2.1.
I got my builds to work by copying a FPLVMgr.dll from the data folder of a newer build.
Is this OK? Does anyone know what I could've done wrong?
The only installing that I did was installing LabVIEW 8.0.1 a while ago and then 8.2.1 recently.
The only repairing I've done was to manually replace a FPLVMgr.dll for a LabVIEW 8.0.1 build application with a version from a LabVIEW 8.2.1 application. This fixed my problem but I'm not sure it's right.
I feel like I'm not explaining myself well.
LabVIEW 8.0.1 builds stopped communicating with my cFP-1808 after I installed LabVIEW 8.2.1. This problem only occurred on the target computer and not on my development computer.