从正常的.aspx页面启动ASP MVC项目

I have an existing ASP.NET web site running on .NET 4.5. I need to integrate an ASP MVC 4 project (which is its own fully-functional web application) into it so that when the user navigates to a certain page, the ASP MVC application is launched within the page - almost as if it were in an I have an existing ASP.NET web site running on