Use the following INI tokens (LabVIEW.ini) to suppress popups and auto-reporting errors:

  NIERShowFatalDialog = 0 
  NIERFatalAutoSend = true 
  NIERNonFatalAutoSend = true 
  NIERShowNonFatalDialogOnExit = false 
  NIERSendDialogClose = true autoerr = 3 
  DWarnDialog = false 
  AutoSaveEnabled = false 
  AllowMultipleInstances = true 
  promoteDWarnInternals = false 
  ShowAIVIsInErrorWindow = true

Taken from Best Practices on How to Use LabVIEW with Jenkins Continuous Integration

From LabVIEW 2020 onwards, it's possible to suppress “(no error)” in error cluster labels when created via the right-click option “Create Control”. Add the following line to the LabVIEW.ini.

NI.LV.RemoveNoError=True

See also https://www.facebook.com/labview/videos/615411719411123

LabVIEW has unofficial support for long paths:

  WindowsLongPaths=True

See also https://discord.com/channels/1015999107921354932/1049145020764127352/1200483840175648861:

When building an executable (EXE-file) it comes with an INI-file of the same name (e.g. “My-App.exe” and “My-App.ini”). This INI-file contains several configuration options regarding the LabVIEW runtime environment in which the application is executed.

Normally, you can run a LabVIEW executable only once at a time. It's possible to change this behavior by adding the following line to the INI-file:

allowmultipleinstances = TRUE

See Application Builder - .exe File Structure