Multiple NI Driver Versions Installed on a Computer -- Version Coexistence

Updated Mar 21, 2019

Reported In

Driver

  • NI CompactRIO
  • FlexRIO
  • NI-DAQmx
  • Vision Acquisition Software

Issue Details

  • Can I have multiple version of an NI driver installed on my computer?  I am not able to use just one driver, because my development environment or hardware are too far apart in age and there is not a single driver version that will cover all my needs.
  • When I installed a newer version of an NI driver I already had installed on my computer, the older version disappeared.  I did not uninstall the previous version and still need to use it.

Solution

Multiple NI driver versions are not able to coexist or exist in parallel on a given computer.  Once a newer version of the driver is installed, the older version of the driver will be uninstalled. 

Additional Information

Multiple versions of an NI drive are not able to coexist because they all versions will make calls to the same library, so with each version update, the library is updated to match the new versions.

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