Migrating a Web Server to IIS 5.0

Effort to Develop and Maintain

Regarding the second consideration, the ASP development environment has several advantages over that of CGI. First, the Microsoft® Script Debugger, IIS 5.0 application management features, and built-in database connectivity enhance ASP development productivity. Also, the ASP environment provides much of the functionality for managing forms, output, and state, so with ASP you might be able to remove a significant amount of existing CGI code, giving you a smaller code base to maintain.

Note When migrating an application, it’s important to consider application architecture. To build a successful and scalable distributed application, where application logic can reside on a Web client, a Web server, and on other back-end servers (such as databases), you must separate the application’s functionality into logical groups of services, or tiers.

For more information about three-tier architecture, about designing and building Web applications, and about reusable application components, see Developing Web Applications in this book and the “Windows Script Components” topic in the IIS 5.0 online product documentation. For references to other resources, see Additional Resources at the end of this section.