The problem: I have a web application that I need to implement something like WCF Polling Duplex, or Comet. Where a connection is opened and not closed. I need to use push because of the high frequency of updates and I cant afford the overhead bandwidth or time.
Technology: The application will be a Silverlight 4 one and the backend .NET(C#) which will need to be able to link in with the rest of my ASP.NET applications' classes etc. The server is IIS7 dedicated, running .NET 4.
I know there's lots of things that claim to do this...APE, Comet, Lightstreamer etc. But I need something that is A) Free and B) Is really scalable and not going to totally kill my server with a lot of people connecting.
It seems WCF with Polling Duplex(is was it Long Polling?) is the right solution, but I need to know that Its not going to crash my server after a couple hundred people are using the SL app.
A link to a comparison of these would be great too - I cant for the life of me find one. P.s. I have read the posts by Tomasz Janczuk.
Thanks alot!