Url Rewriting
Url Rewriting in ASP.NET 4.0
For Url Rewriting in ASP.NET 4.0, You can use Intelligencia dll file. It is very useful with so many features. This is especially for IIS 7.0
Refer Url for the Source code/Exmaple:http://urlrewriter.net/index.php/support/configuration.
There are also different ways of doing UrlRewriting in ASP.NET 4.0 listed in the below site:
http://weblogs.asp.net/scottgu/archive/2007/02/26/tip-trick-url-rewriting-with-asp-net.aspx
Follow 