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The "Charles Explains..." column
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ASP and the relationship between typical corporate programming languages

ASP can be written with Notepad or better editors (with Wizards, Snappy WYSIWYG work surfaces and such) but traditional programmers who know other languages may soon have questions like:

Is it a compiled language?
Can I call native APIs?
How can I get the same speed I achieve in _______.
_____ could be Visual Basic, C++, Java, Delphi, you name it.
Can I use the commands I know? ASP doesn't seem to have all the command my favorite language does....

Relax. ASP uses an architecture called COM (or DCOM these days) to talk to components you build with YOUR favorite languages!

First the programmer sits down with their favorite language and writes the code.

Hopefully the programmer writes it with a compiler capable of producing COM ActiveX DLLs (Whew. That is a mouthful.) They are also called COM Servers as well. Compilers capable of this are numerous but we will mention a few: Delphi, Visual Basic, Visual C, Powerbuilder.
When all code is written and finished the code is compiled into said DLL.
Said DLL is copied to the machine that is the Webserver and the standard registration tools are used to ensure the webserver is aware that DLL is operational.

Now let us go over the essential mechanisms that are ASP:

A user asks for a page say:
http://www.coyoteindustries.com/bye.asp
The Web Server processing goodbye.asp (which is just an ASCII file) responds to commands inside that startup the DLL and call its code by name that you included in the DLL.

whatever.dll	ActiveX DLL <<<<<<<

	COM <<<<<<<
<TITLE>bye.asp</TITLE> </head> <body bgcolor="#FFFFFF"> Today is <%=now%> and all is well<br> <% set x=server.createobject("your.object") x.DoStuff answer=x.DoMore response.write answer set x=nothing %> </body></html>	The webserver file <<<<<<<
	ASP compiler grabs page Interprets all the <% %> markers ands runs your object before browser sees page!
<html><head> <TITLE>hi.asp</TITLE> </head> <body bgcolor="#FFFFFF"> The accounting system is up. Checks went out on time! </body></html>	The user at the browser receives <<<<<<<

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XML and ASP <Next>

CL1 webserver: <Anantsystems> <Ad info>

related sites: <FREE Help> <ASP> <Asp.net> <worldwide>
feedback: <lovethat> <hatethat> <thanks> <credits> <contact us>

Relationship to "Real" Languages	Table of Contents PrintView
<Previous> Competing Technologies	XML and ASP <Next>

A user asks for a page say: http://www.coyoteindustries.com/bye.asp

A user asks for a page say:
http://www.coyoteindustries.com/bye.asp