ASP Vs. ASP.NET

What is the Differences between ASP and ASP.NET ?

ASP.NET has better language support, a large set of new controls and XML based components, and better user authentication.

ASP.NET provides increased performance by running compiled code.

ASP.NET code is not fully backward compatible with ASP.


New in ASP.NET

• Better language support
  
• Programmable controls
  
• Event-driven programming
  
• XML-based components
  
• User authentication, with accounts and roles
  
• Higher scalability
  
• Increased performance - Compiled code
  
• Easier configuration and deployment
  
• Not fully ASP compatible

Web application development in .NET with ASP.NET has evolved a great deal. The overall architecture of web applications in .Net is much more improved and robust. The enhanced features in ASP.NET make it the best available technology for web application development. The code behind the ASP.Net scripts can be in written in any .Net compliant programming language.

The script (ASP.NET scripts), logic (code behind) and presentation (view) are separated from each other so they may evolve independently. There are much more server controls now available in .Net including the standard calendar and amazingly useful data grid controls. The ASP.Net web applications can now use .NET assemblies and COM components to serve the client requests. ASP.NET pages are now compiled contrary to the ASP pages which are interpreted by the ISA server.

Truly speaking, there is no comparison between ASP and ASP.NET.

It's not easy to explain the difference between ASP and ASP.NET, but the second is object oriented and all the element of the page are object.
In ASP.NET you can use the language you want to use to prodece the page (VB.NET or C#).

All the code is in a particular file that is not including in the web pages and you must recompiling when you make changes, because ASP.NET using compiling language.
The compiling of the page was made at the server the first time and in the next run reuses this compiling result.