Using SharePoint web services from Flash: put a cross-domain policy file on your SharePoint server
I a weblog posting on calling SharePoint web services from Flash I forgot to mention that you need to put a special file on the root of your SharePoint server to allow the Flash client to access the web services on the server. This file is called the cross-domain policy file.
Russ asked a question on this in a comment on this posting. I forget to answer this question, sorry Russ.
For more information on the cross-domain policy file see for example this documentation page at Macromedia.
I used FrontPage to drop the file crossdomain.xml in the root of the SharePoint site. The contents of the crossdomain.xml file are in my case:
<allow-access-from domain="*" secure="false" />