Not sure what's happening there maybe the antvirus is stopping it ?, if you install
AutoHotKey then look in the Program Files\Biab Chord Picker Tool\ you will see Biab Chord Picker 2.2.ahk just run that.
EDIT: you may need to add an exception in the AV for it.
When I install the program I get a "CreateProcess failed; code 2." error
This error can occur if you have anti-virus software installed and the anti-virus software is incorrectly reporting that one of the files installed contains a virus. Unfortunately anti-virus software often gives "false positives", i.e. wrongly concludes a file contains a virus. Our software does not contain viruses: