The Active Server Environment

Built into Microsoft® Internet Information Server (IIS) version 3.0, Active Server™ is a server-side and script-based programming model that allows developers to create server and Web server applications.

Active Server also takes full advantage of Microsoft® Windows NT® to create high-performance, scalable Web applications. Shared Internet server applications benefit from a rich set of services for messaging, database access, and transaction support. Because Active Server uses the component model used throughout the Active Platform, third parties can create components and applications that integrate seamlessly with other platform technologies and applications.

CDO in Microsoft® Exchange Server 5.0 is an Active Server component and provides messaging and collaboration functionality to all Active Platform™ applications. The following illustration shows how Active Server components (including, for example, the Active Server Components of Microsoft Exchange) fit within the Active Server platform.