No idea. Look for INI or INF files on the install disks. I recall the format being fairly obvious once you found the right files. The last time I looked at this was 2004 or 2005, so my memory is pretty hazy.

What files would those be?

If I remember correctly, there's some files that instruct the setup program where each compressed file on the installation media should go. You should be able to add files that way.

but still how do I mod it. I have neat ideas.

As crazy as the joints administration is, I highly doubt that was the reason.

Back when i was a user on beta archive user, i've seen people make a custom Windows 3.1 (with installer). How do i do that? Also I want to know how to mod Windows 95 install cd.

BTW: I got banned from BA for supporting the admins/users here at WinWorld.