Error Code -17600 : Failed to Load a Required Step’s Associated Module Under 2025Q3 LabVIEW & TestStand Runtime Environment

Updated Jun 30, 2026

Reported In

Software

  • TestStand
  • LabVIEW

Issue Details

The customized TSUI exe will fail when running the TS sequence that the TestStand Deployment Utility creates with a pre-load error.

It will fail with the error as below snapshot.

However, there is no error when we use built-in TSUI exe.

What can I do to fix this issue?


 

Solution

This error is caused by a conflict between the custom TSUI executable and the sequence files used by the TestStand Deployment Utility build, as both are referencing the same file.

To resolve this issue, when building the custom TestStand UI executable, disable the "Remove unused members of project libraries" option.

Doing so prevents the conflict and allows the build to complete successfully.

  

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