Microsoft thought it would be nice to present a configuration screen to users who have installed or upgraded to Internet Explorer 7. The user can change the default search provider in this initial setup or pick some additional plugins. This runonce page is not really needed in my opinion because all the changes can be made directly in the options as well.
More Simultaneous Downloads with IE7
Microsoft’s Internet Explorer 7 has that strange limitation that you can only download two files simultaneously. This might not bother casual downloaders but what if you have to download many files in a short time ? Sure, you could use a download manager to download all the files and forget about the limit in Internet Explorer. A nice download manager would be for instance Orbit, which I reviewed earlier this year.

