Design Science MathPlayerTM enables Internet Explorer to display mathematical notation in web pages. It is based on MathML* [0] technology and requires Internet Explorer for Windows version 6.0 and later. MathPlayer is made available for free in order to foster the adoption of MathML* [0] in the math, science, and education communities.
http://www.dessci.com/en/products/mathplayer/download.htm [1]