cross domain for flash

Hi all,
I have two sites on my IIS serwer and both are use flash. I have a cross domain file to make it work. Everything was fine for one site, but when I add second cross domain doesn't work for it. What might be the reason? Here is my cross domain xml file:

<?xml version="1.0"?> <!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd"> <cross-domain-policy> <allow-http-request-headers-from domain="*" headers="*"/> </cross-domain-policy>