Not sure why you had problems - a search for "service" turned up this recent thread immediately:
http://www.kixtart.org/ubbthreads/showflat.php?Cat=&Number=120297&page=&view=&sb=5&o=&vc=1

To pass a parameter to KiXtart, you may either use an environment variable which is directly accessible in your script, or pass them on the command line:
Code:
kix32.exe myscript.kix $foo="BAR"



This will set variable "$foo" to "BAR" in your script.