Can you try...

code:
 
AppLaunched=WKIX32.EXE
PostInstallCmd=START /W "WKIX32.EXE WINSTALL.KIX"
?

Since you were getting help message I would think was stopping the start command at the space. Also if you are using IExpress?..Try just...

code:
 
AppLaunched=wkix32.exe winstall.kix
PostInstallCmd=<None>


[ 22. February 2003, 01:00: Message edited by: CitrixMan ]