Using the CLFN, a DLL stays in memory until?

[tbd]

According to question 28 on the LabVIEW Recertification Exam (discussed here)

A dll called through the Call Library Function Node (CLFN) in a subVI remains in memory until

c. An empty path is wired into the same CLFN

I've been away from LabVIEW lately - as of 8.5.1 there was no place to wire an "empty path".

Has something changed since? 

Is answer "D" correct?

Thanks/Cheers!

[tst]

The ability to dynamically specify the DLL file to use has been added to LV in one of the recent versions. I believe it actually should be in 8.5, but I'm not sure.

I never used it, but I believe you need to explicitly enable it in the configuration dialog (i.e. the default mode is to use a static path).

I don't know what answer D is, but it would seem reasonable that the DLL would be unloaded if you select another (or no) DLL.

[tbd]

Right you are, tst.

"Specifiy path on diagram"

Thanks/Cheers!