How to do Url ReWriting in ASP.Net

Hi

I need to Re-write my application URL. Please help with some stuffs

Example 1:

This is my current url : http://localhost/TestApp.Web/Home.aspx

I want : http://localhost/TestApp.Web/Home

Example 2:

http://localhost/TestApp.Web/Product.aspx?pid=MTExMQ==

http://localhost/TestApp.Web/Product/pid=MTExMQ==