Is this possible?
The client and web service were both created using VB.NET 2008 Framework 3.5
Our client application does all of its transactions with the server via a web service. We have a new messaging function which needs to be implemented and in order to receive new messages we need to either poll the server at regular intervals in order to check for new messages, or we need the web server to be able to tell the client application when there is a new message.
The second option is clearly ideal. So the question is how can it be done?