the directx media runtime is included on this cd, and can be installed by the osprey installation program. see the readme.txt file for details. directx media requires that microsoft directx 3.0 or later be installed. windows service packs 4 and later contain directx 3.0. more information about directx and windows nt is available at http://www.microsoftcom/directx/homeuser/faq.asp - dx4