Article ID: 291163 - View products that this article applies to.
This article was previously published under Q291163
For a Microsoft Outlook 2000 version of this article, see 230225
This article provides an overview of how to create a COM add-in for Microsoft Outlook.
OverviewCOM add-ins are an Office feature that was first implemented in Microsoft Office 2000. The architecture is supported by all Office programs, including Outlook. Key benefits of COM add-ins include:
Important The COM add-in extensibility features were designed to run in-process with Outlook. Microsoft Customer Support Services cannot provide support for issues that are specific to COM add-ins that are written as out-of-process components.
What you need to create a COM add-inIn addition to Outlook, you need one of the following development environments to create a COM add-in for Office or Outlook:
Resources and examplesThere are many resources and examples about how to implement an Office or Outlook COM add-in.
Outlook-specific informationCOM add-ins part I: Introducing an Office 2000 solution for the entire (Office) family:
http://msdn2.microsoft.com/en-us/library/aa155767(office.10).aspxCOM add-ins part II: Building a COM add-in for Outlook 2000:
General COM add-in informationMicrosoft 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).aspxDeveloping COM add-ins for Microsoft Office 2000:
http://msdn2.microsoft.com/en-us/library/aa155640(office.10).aspxCreating a Microsoft Office 2000 COM add-in:
http://msdn2.microsoft.com/en-us/library/aa155761(office.10).aspxMicrosoft Knowledge Base articles
(http://support.microsoft.com/kb/238228/ )How to build an Office 2000 COM add-in in Visual Basic
(http://support.microsoft.com/kb/230689/ )SAMPLE: Comaddin.exe Office 2000 COM add-in written in Visual C++
(http://support.microsoft.com/kb/254006/ )Access data retrieval sample add-in available for download
(http://support.microsoft.com/kb/232680/ )How to work with COM add-ins in FrontPage 2000
Important things to know about OutlookThe 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:
(http://support.microsoft.com/kb/294867/ )You cannot fully quit Outlook when you use a COM add-in in Outlook 2002
(http://support.microsoft.com/kb/291166/ )All COM add-in run-time errors must be trapped
(http://support.microsoft.com/kb/292182/ )CommandBars not available from Application object
For more information about available resources and answers to commonly asked questions about Microsoft Outlook solutions, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/287530/ )Frequently asked questions about custom forms and Outlook solutions