Saving Config.lvlib for previous LabVIEW version

[JonathanMATech]

The attached ZIP file is a copy of the config.lvlib project saved in LV 2018 format that I have changed the library name and fixed all the file references (tricky in itself). I have a similar copy of the library that I have made changes to. I want to save this library to a previous version of LabVIEW.

When I try doing the save for previous version process from the library window, however, I get the following error.

Why is this error happening and what is the best work around?

[GerdW · Accepted solution]

Hi Jonathan,

Why is this error happening

That is mentioned in your error message: you cannot downconvert toolkit VIs…

and what is the best work around?

Install the same toolkit (from its official source) in your other LabVIEW version…

[Ben]

"Why"?

Why questions are the hardest to answer because we would have to be a fly-on-the-wall in the meeting where it was determined that we could not back save password protected libraries...

But I will guess and throw out some wild speculations.

In LV 8.2 there was a bug in one version of LabVIEW that would let us get at the diagrams of password protected VIs. The bug was fixed in latter versions. Shortly thereafter, the ability to back-save password protected VIs was implemented.

Now for the speculation!

In order to prevent people from back-saving to the "buggy" version of LV to crack password protected code, the ability to back save password protected libraries was removed.

That is the best I can do with your "WHY" question.

Ben