When Windows Azure was first released, only Web Roles were able to have an externally facing endpoint. Since PDC 2009, Worker Roles can now also have an external facing endpoint, allowing for a custom application server to be hosted in a Worker Role. Another option would be to run your own WCF service and have it hosted in a Worker Role. Features like load balancing, multiple instances of the Worker are all available. Let’s see how you can create a simple TCP service that can display the current date and time.