Avoid downloading additional updates when installing IntExp 7 ?

I downloaded the FULL IntExp 7 package to my local computer.

I expected that I can now install IntExp on my WinXP system WITHOUT additional downloads.

But when I start the installation a dialog window pops up informing me that he wants
to download "required" updates from Microsoft.

This popup stays for approx 20 minutes because the downloads cannot be performed due to my firewall blocks.

Why does IntExp needs additional updates? ALL SECURITY UPDATES WERE installed.

I don't want some more unknown updates from MS or someone else.

How can I prevent this popup and waiting of the installation procedure and just
install the browser ?

Ken