Windows Setup: setup.exe - Application Error

[Guest]

When trying to install Vista from a cold boot, I get past the entering of the
Product Key and then to the "Which Type Of Installation Do You Want?"
Obviously I choose the Custom (advanced) to install a clean copy of Vista and
then suddenly I get the following error:

 

[MICHAEL]

When trying to install Vista from a cold boot, I get past the entering of the
Product Key and then to the "Which Type Of Installation Do You Want?"
Obviously I choose the Custom (advanced) to install a clean copy of Vista and
then suddenly I get the following error:

I don't know what that error code means- but,
try to install it again. Are you putting Vista on
a separate partition? Please, don't delete your
present OS.

Also, when you go to install Vista, disconnect
any devices (web cams, USB drives, thumb drives)
that you don't absolutely need. Then, once Vista is
installed connect each device and install them one
by one.

-Michael