NI PXI DMM 4070 Driver version problem

[rickdee]

Hi,

We have developed a test program using C# on NI PXI DMM  4070 for driver version 14.0. However, when we tried to upgrade the driver version, we started to face error which we suspect could be due to the driver version.

After installing driver version 14.0, we see the following file structure in our file explorer.

In the NI MAX, we will see the version as below.

The two driver files that we need are shown in this figure:

Question 1: Is it true that we should always use the driver files from the "..../current" directory even though other sub-directories have similar filename too?

Question 2: Does the folder name "current" basically tell us that now this current directory contain version 14.0 drivers?

Next we install driver version 15.1. This time the folder structure look like this:

Question 3: So the folder name "current" now means it is for "15.1"?

Question 4: So do I need to change my program to reference to the two reference files to this new folder in order to make my program work?

However, I found out that at the NI MAX, it is showing version 15.0.40.49154.

Question 5: So, is this a bug?

Thanks

Rick