NI845x Driver 20.0 removes LV2013 files

[Viper]

I am trying to migrate to LV2019. I use LV2013 and sometimes it gets a little hinkey. I migrated one of my test programs to 2019 and had minimal problems.Today I tried to move a second one that uses an NI SPI interface. When I loaded it into LV2019 of course the NI845x files were missing. So I downloaded NI-845x 20.0 from NI.com and installed it. When I went back to my LV2013 the NI845x files are now missing from the <vilib> folder. I can't reload them since the 15.0 version driver won't run be a "newer version is installed".

Can I just copy the files from another PC into the C:\Program Files (x86)\National Instruments\LabVIEW 2013\vi.lib folder?

Norm

[billko]

I believe this is because NI driver support only goes back 3 years.  Any drivers versions 3 years or older than the latest that was installed will be deleted.  You should migrate all your code to LV 2019 now.  it will be very difficult to manage a multiple LV version installation with versions that are so far apart.

[crossrulz]

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@Viper wrote:

Can I just copy the files from another PC into the C:\Program Files (x86)\National Instruments\LabVIEW 2013\vi.lib folder?

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Possibly, but it would be very risky.  You have no clue what in the DLL changed, so errors may occur at either runtime or edit time.

The last version to support LabVIEW 2013 would be 16.0, which obviously is not compatible with LabVIEW 2019.  I also recommend just porting everything to 2019 or even 2020.  I am currently in the process of updating all of my stuff to 2019 (Maps are amazing!) with the 20.0 drivers from 2016 with plans to start using 2020 after the SP1 release or when a patch is released that fixes certain bugs (I really want to use Interfaces).