Help on C#/SMTP

Question

Hi, I am a ASP developer, based in Singapore, and new to C#. Currently, i need to write a C# application which will send email. When i checked VS.NET, i can not find System.Web.Mail namespace. I can see System.Web. But if the project type is ASP.NET(C#), then i can see the System.Web.Mail namespace. How to see the System.Web.Mail namespace in C#'s windows application project? Pls help. Thanks and regards, Peri