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How to create a COM add-in in Outlook 2000

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Article ID:230225
Last Review:August 29, 2007
Revision:6.1
This article was previously published under Q230225
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SUMMARY

This article provides an overview of how to create a COM add-in in Outlook 2000.

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MORE INFORMATION

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Overview

COM add-ins are a new feature in Microsoft Office 2000 and are supported by all Office programs, including Outlook. Key benefits of COM add-ins include:
•COM add-ins run in-process with the host program, so custom code generally runs faster than code implemented in Visual Basic for Applications.
•The basic COM add-in architecture is consistent across all Office programs, whereas in previous versions of Office, each program had its own add-in architecture.
•You can create one COM add-in to use with more than one Office program.

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What You Need to Create a COM Add-in

In addition to Outlook 2000, you need one of the following development environments to create a COM add-in for Office or Outlook:
•Visual Basic 5.0 or later (Visual Basic 6.0 is preferred)
•Microsoft Office Developer, which includes the ability to compile a Visual Basic for Applications project into a Dynamic Link Library (DLL)
•Any other COM-compliant development environment, such as Microsoft C++ or Microsoft J++

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Resources and Examples

There are many resources and examples about how to implement an Office or Outlook COM add-in.

Outlook-Specific Information

COM Add-ins Part I: Introducing an Office 2000 Solution for the Entire (Office) Family:
http://msdn2.microsoft.com/en-us/library/Aa155767(office.10).aspx (http://msdn2.microsoft.com/en-us/library/Aa155767(office.10).aspx)
COM Add-ins Part II: Building a COM Add-in for Outlook 2000:
http://msdn2.microsoft.com/en-us/library/Aa140126(office.10).aspx (http://msdn2.microsoft.com/en-us/library/Aa140126(office.10).aspx)
Sample chapter from "Professional Outlook 2000 Programming:"
http://www.cdolive.com/prool2k.htm (http://www.cdolive.com/prool2k.htm)
COM Add-in Information from the Slipstick Systems Web site:
http://www.slipstick.com/dev/comaddins.htm (http://www.slipstick.com/dev/comaddins.htm)

General COM Add-in Information

Microsoft Office 2000/Visual Basic Programmer's Guide
Chapter 11: Add-ins, Templates, Wizards, and Libraries:
http://msdn2.microsoft.com/en-us/library/Aa189019(office.10).aspx (http://msdn2.microsoft.com/en-us/library/Aa189019(office.10).aspx)
Developing COM Add-Ins for Microsoft Office 2000:
msdn.microsoft.com/library/en-us/dno2kta/html/comaddins.asp (http://msdn2.microsoft.com/en-us/library/Aa155640(office.10).aspx)
Creating a Microsoft Office 2000 COM Add-in:
http://msdn2.microsoft.com/en-us/library/Aa155761(office.10).aspx (http://msdn2.microsoft.com/en-us/library/Aa155761(office.10).aspx)
Microsoft Knowledge Base Articles
238228 (http://support.microsoft.com/kb/238228/) How To Build an Office 2000 COM Add-In in Visual Basic
230689 (http://support.microsoft.com/kb/230689/EN-US/) SAMPLE: Comaddin.exe Office 2000 COM Add-In Written in Visual C++
254006 (http://support.microsoft.com/kb/254006/EN-US/) INFO: Access Data Retrieval Sample Add-In Available for Download
232680 (http://support.microsoft.com/kb/232680/EN-US/) FP2000: How to Work With COM Add-ins in FrontPage 2000

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Important Things to Know About Outlook

The following Microsoft Knowledge Base articles provide information about the key things that you should be aware of when you develop a COM add-in for Outlook:

208332 (http://support.microsoft.com/kb/208332/EN-US/) OL2000: You Cannot Fully Quit Outlook When You Use a COM Add-in
208316 (http://support.microsoft.com/kb/208316/EN-US/) OL2000: All COM Add-in Run-Time Errors Must Be Trapped
230504 (http://support.microsoft.com/kb/230504/EN-US/) OL2000: CommandBars Not Available from Application Object

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REFERENCES

For additional information about available resources and answers to commonly asked questions about Microsoft Outlook solutions, click the article number below to view the article in the Microsoft Knowledge Base:
146636 (http://support.microsoft.com/kb/146636/EN-US/) OL2000: Questions About Custom Forms and Outlook Solutions

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APPLIES TO
•Microsoft Outlook 2000 Standard Edition

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Keywords: 
kbaddin kbfunctions kbhowto KB230225

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