hide program questions

[faustf 3]

hi  guy

i  have  a  program  in java ,  when turn-on this  progrma   appear  on top  a splash-screen , i want create e  autoit  for start a  java program  but in hide-mode

the  java  program  work in this  mode:

stay in c:programmimyprog.exe ,  when  start , open  javaw.exe

i try to hide  myprog.exe  and javaw.exe   with :

ShellExecute('C:\Windows\SysWOW64\javaw.exe',@SW_HIDE)

[JohnOne 1,541]

What is the second parameter in ShellExecute function?