It's completely inconsequential.
IE depends on various system files. Sure, you might be able to remove some
files that comprise IE7 w/o effect .. but, at the same time one cannot
actually remove the parts that are shared system-wide.
Since IE7 itself takes up but a few mega-bytes, there is absolutely no
reason to remove it what-so-ever. It came with Windows, shares components
with Windows .. forget about it. If you want to make some other browser the
default that's easy enough.
But since IE7 is a a great improvement over IE6, is much hardier, is about
as standards compliant as a browser can get, is fast and robust, I would
recommend just using IE7 and forget about the weak raw untempered
"alternatives" such as FF:
Obviously, as more people are switching from Internet Explorer to
Firefox, hackers are doing the same.
The hackers have barely started on FF. If they ever should get serious on
it, it would squish apart like jello under a sledgehammer. IE, on the other
hand, is hardened code. Exploits found in it, these days, tend to be
esoteric and difficult [in contrast to FF whose security holes tend to be
basic raw and glaring - heck, the JavaScript engine is still soft]. Hackers
are finding IE harder and harder to exploit .. FF is more like a fresh baked
pie .. when enough people are on it, it will be time for the hackers to dig
right in.
http://www.hutteman.com/weblog/2006/10/02-251.html
Saucy