Comet, Reverse Ajax or Ajax Push

Comet is a web framework in which the server sends data to the client using long held connections. As soon as the client receives the message it opens a connection to the server until a complete message is read. This Architecture enables the server to push data to the client [...]

Asp.net AJAX stops working on upgrade from asp.net 2.0 to 3.5

Issue:
I upgraded my existing project developed in asp.net and .net extensions 1.0 to Ajax extensions that come bundled with asp.net 3.5 using Visual Studio 2008. After the upgrade I got compiler errors saying that the required assembly could not be found.
Reason:
It turns out that on conversion Visual studio does not remove the reference to the [...]