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As part of the Windows Azure AppFabric July Release, we have added support for cross-domain policy files to enable cross-domains calls to Service Bus and Access Control Service from Silverlight and Flash clients. This new sample demonstrates how to consume the AppFabric Access Control Service (ACS) and the Service Bus's Message Buffer API from a Flash application.
You will find the sample as an attachment to this post. Enjoy!
If you have any issues/questions/feedback with this sample, please address them in the Windows Azure AppFabric forums