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To understand where a VB IIS application can fit in to Web development,
consider the following basic facts about Internet Web page architecture:
HTML (Hypertext Markup Language) is the standard language
recognized by all Internet Web browsers (such as Internet Explorer or Netscape).
HTML files reside on a server. A browser requests the HTML file from a server
when the user navigates to a particular Web page representing the HTML file. The
server sends the file to the browser, and the browser interprets the HTML script
inside the file to display the Web page to the user.
ASP (Active Server Pages) is a technology that Microsoft provides
as a supplement to its Web server, Microsoft Internet Information Server (IIS).
ASP provides an enhancement to the HTML language that allows IIS (or any other
Web server that can understand ASP) to dynamically change the HTML that it sends
The end product of ASP is still standard HTML, recognizable by all browsers. All
ASP processing takes place on the server and so is completely transparent to browsers,
which only see the standard HTML pages produced by ASP.
VB WebClass applications (also known as IIS applications) are
essentially an enhancement to the technology of Active Server Pages (ASP) that
enable a VB programmer to use the power and ease of the VB programming environment
to create applications that run with ASP.
The following sections first give an overview of ASP alone and
then proceed to discuss how you can create VB IIS applications to enhance the
Creating a Simple ASP Page
IIS (WebClass Designer) Applications in VB
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