In ASP.Net when the browser are not supportive to cookies then such browsers can be handled by managing sessions with the help of Cookie Munging. According to inbuilt system of ASP.Net cookies are stored to session Ids, but when cookies are disabled in a web browser it is not possible to create any cookies on user’s local machine. In such situation session Id can be appended in a URL and can be passed directly to the server for it’s decoding and completion of the requested page, thus the requested page is enabled for retrieving any session variable. This all is possible with the user of Cookie Munging and it is very useful while dealing with old browsers which does not support cookies and few cases of domain name redirection. The code used for enabling Cookie Munging is “<sessionState cookieless= “true />”

How to use .NET application’s ?

Microsoft ASP.NET is a free technology that allows programmers to create dynamic web applications. ASP.NET can be used to create anything from small, personal websites to large, enterprise-class web applications.
If using Visual Studio .NET, you can publish directly to your site using your URL (i.e. http://your-webserver/yourusername) and selecting “FrontPage Extensions” as the publishing method.
Verify the following settings in your web.config file:
<customErrors mode=”Off” /> – Allows you to see your errors
<authentication mode=”Windows” /> – Remove this line
<sessionState /> – Remove this line
Global.asax goes in your root web directory.
Your assemblies go in your /Bin directory (VS .NET will create this directory for you.)
You can use ASP 3.0 and ASP.NET in the same account (Note: They will not share session data).
For more information about Microsoft’s .NET technology, including tutorials and sample code, visit Microsoft’s site at ASP.NET.