Active Server Pages

Active Server Pages (ASP) is a Microsoft's server-side technology for dynamically-generated web pages that is marketed as an adjunct to [Internet Information Server]? (IIS).
Pages can be generated by mixing server-side scripting code (including database access) with html and client-side code. For example:

<%if x=1 then%>
     <b>X equals one</b>
<%else%>
     <b>X is not one</b>
<%end if%>

This code results in the html

<b>X equals one</b>

when the server-side variable X=1.

Programming ASP websites is made easier by various built-in objects, such as a cookie-based session object that maintains variables from page to page.

In early 2002, standard ASP is being replaced by ASP.NET, which among other things replaces scripting languages with full-fledged Visual Basic, C#, or any other .NET-supported language.