mr stiff is right. try this::
find a file named mime.types in the directory <apache>/conf where <apache> is the directory the webserver is installed in. you are running redhat, so <apache> will probably be /usr/local/apache2/.
i believe in apache2, there is also a copy at /etc/mime.types and im not sure which one is used.
in any event, modify any mime.types files you find by adding these lines
# various Micro$oft extensions
video/x-ms-asf asf asx
video/x-ms-wm wm
video/x-ms-wmv wmv
video/x-ms-wmx wmx
video/x-ms-wvx wvx
restart apache, and it should work correctly. if it still doesnt work, apache is probably using yet another mime.types file. run 'find / | grep mime.types' and modify any mime.types files that are found.