I would like to add, I have the definitions inside the same folder as the batch script.
Also, I tried using ".cmd" instead of ".exe" but they give me the same error
[Update] Removing the d=xxx.def allowed the command to run. Still need
"C:\Program Files\Siemens\NX 11.0\STEP214UG\step214ug.cmd" test.prt o=test.step
will create a step file using the default definitions
We are working on a new system to get released files to other parts of our company in STEP...