The "Allow video and animation on a Web page that uses a legacy media player" machine setting should be configured correctly for the Trusted Sites Zone. enabled/disabled Computer Configuration\Administrative Templates\Windows Components\Internet Explorer\Internet Control Panel\Security Page\Trusted Sites Zone\Allow video and animation on a Web page that uses a legacy media player HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2 Microsoft Tool: Security Compliance Manager (SCM) Microsoft Baseline: Internet Explorer 8 SCM URL: http://go.microsoft.com/fwlink/?LinkId=113940 Microsoft Security Compliance Manager (SCM) Baselines and Settings Packs Microsoft