Can Bink2ForUnreal.exe run headless (or close automatically when finished)?

I’m trying to run Bink2ForUnreal.exe via the command line (specifically “Bink2ForUnreal.exe bink2c” - but this still creates a window that doesn’t automatically close when then conversion finishes. I want to automate the conversion of mp4 files and I don’t think it’s possible if the bink application doesn’t close automatically

Use /# to close the window automatically. You might want /o for automatic overwrite too. Windows itself can sometimes pop up a codec error, but those are rare.