Question

I would like to make my ASP.NET web page URLs without .aspx extensions. I can do it in two ways, use IIS7 URL Rewrite module or ASP.NET URL Routing. Which method to choose?

Answer 1

Use ASP.NET Routing. It’s the most up-to-date and right way to do that, since .NET 4.0.

Read this thorough article regarding the subject written by the MSDN team (go to Which Option Should You Use?).

Routing keeps the request-resource resolution logic within your application, so it’s very easy to add application-dependent logic when you need, and it eliminates the need to maintain synchronization between your application and a separate configuration resource.

Quote from the article mentioned above:

1. If you are developing a new ASP.NET Web application that uses either
   ASP.NET MVC or ASP.NET Dynamic Data technologies, use ASP.NET
   routing. Your application will benefit from native support for clean
   URLs, including generation of clean URLs for the links in your Web
   pages. Note that ASP.NET routing does not support standard Web Forms
   applications yet, although there are plans to support it in the
   future.

2. If you already have a legacy ASP.NET Web application and do
   not want to change it, use the URL Rewrite module. The URL Rewrite
   module lets you translate search engine-friendly URLs into a format
   that your application currently uses. Also, it lets you create
   redirect rules that can be used to redirect search engine crawlers
   to clean URLs.

Also read this thorough answer in SO: IIS URL Rewriting vs URL Routing