Example Programs

RT EXE Versioning Example

Code and Documents



Store the application version number in a constant and use a Pre-Build Action VI to automatically update it.


Pre-Build Action VI.png



In a Real-Time Application build specification, Labview allow us to set a version number. But unfortunately the App.Version node doesn't work in the RTEXE and there is no other way to get our version number.


As a workaround, I use a constant named "AppVersion" in the top-level VI and i use a Pre-build Action VI in the build specification to automatically update the constant before each build.


In this example, the constant is a string but it can be changed easily with numeric values.


Hardware and Software Requirements

Labview with Application Builder.


Steps to Implement or Execute Code

Copy the Pre-Build Action VI in your project and add it as a Pre-build action in your Application Build Specification. 


Additional Information or References

 LabVIEW Real-Time Ideas : Add a version number to RT EXE files

Yohann L.

Example code from the Example Code Exchange in the NI Community is licensed with the MIT license.

Member t.kendall

It should be noted that this will not work with LabVIEWCLI if you are using a CI server.  The workaround to that is to open the project with and invoke node from the path.  Make sure that you close it at the end or you will fail the build. 



Additionally I think that libraries are locked prior to the pre-build step so if the vi you are attempting to modify is part of a library you will get an error on save.