Web Server Applications
SIMPOL can also be used to create powerful web server applications and has built-in support for CGI (Common Gateway Interface), ISAPI (Internet Server Application Programming Interface), and Fast-CGI, which is a high-performance version of CGI. One of the more powerful features in SIMPOL when developing web server applications is the ability to do source-level debugging of a web server application as a callback from the web server. Generally this is done using the Apache web server running locally on Windows. For the complete story, go to Chapter 9, Web Server Programs.