At this moment I’m busy with creating a windows service with following specifications:

• Host a web service in this windows service without using IIS
• On one site the communication uses TCP Sockets
• On the other site the communication uses SOAP messages
• Above all of this, the whole thing must work Asynchronous.

Yesterday in my RSS Feeds, I came to an interesting site for using this in ASP.Net.  Just follow this link http://gbarnett.org/archive/2007/02/08/asynchronous-programming-in-asp-net.aspx.