Iexpress "Hidden Mode"

Hello, I have a question about the IEXPRESS self-installing package creator that comes with windows. I was wondering if it is possible to make the installer extract files to a predefined location without the user having to select it and all in hidden mode.

When you select the show window option to be "hidden", it seems the files are always extracted to a temporary directory, and then run from there. Does anybody know how to do this?

Thanks in advance

The only way I could think of was to add a post install command - it gives you that option. You could add a command to move the extracted files to the location of your choice. It depends on the package, a program that registered itself wouldn't really be suitable, but a pile of photos might work.