ASP was for the first time was released in December 1996. Since then it has been through major changes and has grown and tailored to the new methods of developing web sites and applications for the internet over the period of time. There are two major forms of ASP: ASP.net and ASP Classic

• ASP.net- The .net compliant languages can be used with ASP.net like C# and VB.net, where both of them are server-sided languages where as in ASP only VBScript and JavaScript are available as options to be used. Then the ASP pages are interpreted and the ASP.net Code is compiled.
• Classic ASP- In classic ASP the executable code cannot be separated from the HTML making the page difficult to read and maintain. The code block has to be placed when ever the output is to be shown. This limitation of code is overcome in ASP.net by the use of server controls. The HTML and Web Server Controls created on the server require a attribute to work. This attribute indicates that the page will be processed on the server. At the same time it implies that the enclosed controls can be accessed by server scripts.