Run MVC in older version of IIS

http://www.asp.net/mvc/tutorials/using-asp-net-mvc-with-different-versions-of-iis-cs

IIS 7(integrated mode): no need

IIS 7(classical mode): need

IIS 6: need

two options:

1. modify route table to use file extension if have no right to control web server

modify Global.asax

2. don't want to modify url appearence and could control the web server

modify Global.asax + set up wildcard script map