Important: This whitepaper applied to Internet Explorer 8 Beta 1, and has been removed. For current documentation, please visit the corresponding page in the Internet Explorer SDK:
HTInternet Explorer Namespace Support Windows Internet Explorer 8 Beta 1 for Developers offers Web developers the opportunity to write standards-compliant HTML-based Web pages that support features (such as SVG, XUL, and MathML) in namespaces, provided that the client has installed appropriate handlers for those namespaces via binary behaviors.