ASP
Active Server Pages (ASP) is Microsoft's server-side scripting technology.
ASP files, which provide Web developers with an easier, faster, and more powerful way to build Web applications, are regular HTML pages with embedded scripts.
ASP allows you to do complex tasks that normal HTML does not allow. With ASP you can update information and store it in complex databases for easy access. These scripts can be written in any language and processed by the server when the file's URL is requested. ASP.NET is the next version of ASP. Other popular server-side scripting languages are Perl, PHP, ColdFusion, TCL, Python, and JSP.