If you are wondering what happened to the command line executable that can start the Built in Web Server, it is very much there. But, it is no longer at the .Net Framework \WINDOWS\Microsoft.NET\Framework\v2.0.50727\WebDev.WebServer.EXE as the case with Visual Studio 2005.
It is now available at
C:\Program Files\Common Files\microsoft shared\DevServer\9.0\WebDev.WebServer.EXE
You may use the following in a batch file:
START /D “C:\Program Files\Common Files\microsoft shared\DevServer\9.0\” /B WebDev.WebServer.EXE /port:80 /path:”D:\MyWeb”
Change the port number and web path as required.