We are building a Silverlight-based system in the financial domain. We need to push notifications/stream data from the server to the Silverlight client. We use Silverlight 4 for the client and Windows Server 2003/IIS6 on the server side (this excludes AppFabric).
So far I haven’t been able to find a Silverlight-compatible data push solution that would be secure and scalable. Out of the box sockets don’t seem to support SSL and the PollingDuplexHttpBinding doesn’t seem to scale for the web farm implementations/failover. It also looks like that IIS is not the best platform for long polling applications.
Has anybody successfully implemented an enterprise-grade notification push solution for Silverlight and what technologies/products have you used?
Comet servers are pretty scaleable a lot of financial systems use them.
An example of this marketsplus.com.au/evolve who use a Comet server to pump price info up to their Silverlight client.
Some Comet implementations are meteorserver.org, pokein.com or frozenmountain.com/websync.