create a new folder for the new version of arraymaker: arrayMaker_2.64

copy all files from old installation to arrayMaker_2.64 folder, EXCEPT .exe

copy motor.cfg and rename to motor.cfg.backup (or similar)

extract files from zip archive
rename new version of motor.cfg to motor.cfg.new or similar
copy .exe and motor.cfg.new to arrayMaker_2.64 folder

add missing line(s) from motor.cfg.new into old motor.cfg and save

NOTE: ArrayMaker v2.64 works best with Windows 2000. The Galil 99 drivers do not function with Windows NT.  In addition, Windows XP occasionally causes crashes mid-run.