I have to assume that you sanitized the path for posting. Basically, you should have a one-line BATch file that calls KiX and the script. If you browse to the folder, then it becomes your current working directory.

What happens of you do not browse to it and paste the one-liner to the Run line?

If you added a line to your BATch file that launches say, Notepad.exe, does it launch?
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