Cool.dll was originally introduced with
Microsoft Plus! 95, a package designed to extend the functionality of the
OS with things like
themes. The
DLL actually contains quite a few
kewl things if you look into it (albeit mostly aged by now), such as some
icons from back in the day and some very un-useful and long replaced
calls.
Now for the bonus question, can anyone tell me why the core of IE (
SHDOCVW.DLL) is called
SHDOCVW.DLL?