ASP

The asp file extension is associated with Microsoft Active Server Page source code script file.

The asp files are used to create dynamically generated websites and other webpage content.

The ASP code is inserted into static HTML pages with <%%> tags by default, although these tags can be changed to anything you would like. So, like, if you were a PHP programmer forced by his workplace to use ASP, you could change those percentage signs to question marks.

The ASP is Microsoft's proprietary answer to php server side scripting language or Cold Fusion. The new version of ASP and not backward compatible is ASP.NET (aspx).

Technically, ASP is not a scripting language; it's an open standard object model for web services, or something along those lines. So, although the vast majority of ASP pages are written in Microsoft's VisualBasic, they can actually be written in any language for which an ASP thingy has been written. Presently, this means you could also write ASP pages in JavaScript or PerlScript, and maybe one or two others I haven't heard of. The defining characteristic that makes it ASP is the way that you access the 'Write' method of the 'Server' object in order to output "Hello World!".

Microsoft has added a lot of extensions to ASP that are very difficult to find information on in a Google search because they are the same as top-level domains, like COM and .NET. As far as I understand it, COM added the ability to write some code for your ASP pages in a separate file, compile it to assembly, and register it as a service with the operating system. You just have to make your code in the form of an object, which you instantiate from within your scripts to use it. Thus, you can write code for the web in C++ or whatever, and get really fast speeds.

Since the ASP pages are processed on the server, website visitors do not see the actual ASP code, just the common HTML pages generated from the scripts within the page.

The .asp pages typically use the ASP extension rather than html.

The asp file extension is associated with the Adobe Acrobat, a document authoring tool for Windows and Apple Mac OS X (macOS) that allows users to create PDF documents.

The asp file stores some kind of data used by Adobe Acrobat.

The asp file extension is associated with the Adobe Photoshop, a graphics and digital photo editing tool for Microsoft Windows and Mac OS X (macOS) operating systems.

The asp file stores photo index data created by Adobe Photoshop.

The asp file extension is associated with the Adobe Photoshop, a picture image and digital photo editing software for Microsoft Windows and Apple Mac OS X (macOS) operating system.

The asp file stores separation setup data used by Adobe Photoshop.

The asp file extension is also used by Alphacam, a market leading computer aided manufacturing (CAM) system for NC part programming developed by the company of same name.

The asp file used in this program contains stone post data. One of the default data file format.

The asp file extension was also used by ASAP WebShow for Netscape Navigator bringing live slide shows to the Internet.

ASAP WebShow delivers reports, presentations and graphical communications from any Web Page.

The asp file stores WebShow presentation.

MIME types:
application/x-asap

The asp file extension is related to a text format used by Association of Shareware Professionals. Most likely some sort of readme file that was added to each software package.

The asp file can be opened in any text editor.

The asp file extension was used by the presentation software called Astound Presentation released in 1995 for Microsoft Windows operating system.

The asp file contains presentation created in the program.

The Astound seems to be obsolete product.

The asp file extension is associated with the Canvas, a drawing, imaging, and publishing application for Microsoft Windows operating system developed by ACD Systems.

The asp file stores separation setup data.

Mime types:
text/asp

The asp file extension is associated with the MSN services for Microsoft Windows operating system.

The asp file stores MSN ASF video plugin for MSN.

The MSN ASF video plugin format seems to be obsolete.

Mime types:
video/x-ms-asf-plugin

The asp file extension is associated with the Procomm Plus, a terminal emulation software for Microsoft Windows operating system developed by Symantec.

The asp file stores script written for Procomm Plus in ASPect language.

The Procomm Plus is obsolete product.