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Programming WebLogic jCOM

# Introduction and Roadmap

The following sections describe the contents and organization of this guide—Programming WebLogic jCOM:

- Document Scope and Audience
- Guide to This Document
- Related Documentation
- jCOM Examples Available for Download
- New and Changed Features

# Document Scope and Audience

This document is a resource for software developers who want to develop and configure applications that include WebLogic Server® Java Component Object (jCOM). It also contains information that is useful for business analysts and system architects who are evaluating WebLogic Server or considering the use of WebLogic Server jCOM for a particular application

The topics in this document are relevant during the design and development phases of a software project. The document also includes topics that are useful in solving application problems that are discovered during test and pre-production phases of a project.

This document does not address production phase administration, monitoring, or performance tuning jCOM topics. For links to WebLogic Server documentation and resources for these topics, see Related Documentation.

It is assumed that the reader is familiar with J2EE and jCOM concepts. This document emphasizes the value-added features provided by WebLogic Server jCOM and key information about how to use WebLogic Server features and facilities to get a jCOM application up and running.

# Guide to This Document

- This chapter, Introduction and Roadmap, describes the scope and organization of this guide.
- Understanding WebLogic jCOM, provides an overview of the Java to COM Service. It also describes WebLogic jCOM components and features.
- Calling into WebLogic Server from a COM Client Application, describes how to access WebLogic Server from a COM client application using WebLogic Server jCOM.
- Calling into a COM Application from WebLogic Server, describes how to access a COM client application from WebLogic Server using WebLogic Server jCOM.
- A Closer Look at the jCOM Tools, describes how to programatically manage your jCOM applications using value-added WebLogic jCOM tools.
- Upgrading Considerations, describes how to use Multicasting to enable the delivery of messages to a select group of hosts that subsequently forward the messages to subscribers.

# Related Documentation

This document contains information about configuring and managing jCOM resources.

For jCOM information as it relates to WebLogic Server, see the following document:

- Securing WebLogic Resources for information about COM resources.

# jCOM Examples Available for Download

API examples for download are available at http://www.projects.dev2dev.bea.com/. These examples are distributed as ZIP files that you can unzip into an existing WebLogic Server samples directory structure.

You build and run the downloadable examples in the same manner as you would an installed WebLogic Server example. See the download pages of individual examples for more information at `http://dev2dev.bea.com/code/index.jsp`.

# New and Changed Features

WebLogic Server changed substantially in version 9.0, and these changes apply to later releases as well. For a detailed description of features and functionality introduced in WebLogic Server 9.0, see What's New in WebLogic Server 9.0.