Cant install Opus

i keep getting a message that says this

(( the installshield engine (ikernel.exe) could not be launched
%1 is not a vaild win32 Application ))

has anyone has this before ?? or anyone know how to fix this problem ??

Maybe these will help:

wellesley.edu/Computing/Inst ... Error.html

consumer.installshield.com/common.asp?source=all

Sounds like it's a general InstallShield problem and not specific to the Opus installer.