Microsoft is moving toward permanently modifying the way Internet Explorer renders multimedia content on Web pages, as part of the terms of its patent settlement with Eolas. Because the changes it is making have the potential to be disruptive, Microsoft is giving developers a one-time, 60-day extension to re-author certain Web pages, Microsoft told partners, in the hopes of warding off potential difficulties for pages and applications that make use of ActiveX. Microsoft will institute the required IE changes as part of a cumulative IE security update due out April 11.