ASP stands for an Active Server Page, a type of web page that is hosted on a server that supports the ASP scripting engine. ASP is a file that contains text, HTML, and/or ASP scripting commands. ASP files use/require the *.asp extension. Microsoft Internet Information Server (IIS) supports ASP. You can also use ASP with varrying forms of (or add-ons for) Apache such as Apache::ASP::Install.