Office Developer: Difference between Office Web addin vs COM/VSTO addin

COM or VSTO add-ins are earlier Office integration solutions that run only on Office for Windows. The major difference what you see is that COM addins will be running in the user device or in the Office Client. The new Office Add-ins don’t involve code that runs on the user’s device or in the Office…


New name for Apps for Office and SharePoint? Office and SharePoint Add-ins

As you aware that you can use Office and SharePoint Add-ins to extend Office applications with content directly from the web or to extend SharePoint websites. But do you know the “new name” for “apps for Office and SharePoint”? Yes, the platform name will be changed from "apps for Office and SharePoint" to "Office and…


Developer : Does Exchange Client Extension (ECE) deprecation matters me?

Per Randy’s blog post, Exchange Client Extension (ECEs) deprecation does (for Outlook 2010) matters the developers. For more information please refer the excerpts of the blog post: “For most Outlook users, this announcement will not concern you. However, if you are a developer that uses Exchange Client Extension interfaces to build a solution in Outlook,…


Unsupported Messaging API’s in Managed code – Outlook Add-ins

Certain technologies that predate the .NET Framework are not supported in managed code programming. These technologies include Collaboration Data Objects (CDO), Messaging Application Programming Interface (MAPI, often known as Extended MAPI), and Simple MAPI. These technologies were designed and developed with unmanaged code, and Microsoft does not provide official managed wrappers to support their use…

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Outlook 2007 SP2’s application shutdown changes

I went through Ryan’s MSDN article, where we can learn how Microsoft Office Outlook 2007 Service Pack 2 has changed the way that the Outlook process shuts down. Customers developing Outlook solutions that run outside of the Outlook process should understand these changes and the impact on their solutions. Prior to Outlook 2007 SP2, Outlook…

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Outlook Add-in : How to apply Windows XP themes to Office COM Add-ins?

When you create a COM add-in for a Microsoft Office program, the appearance of that add-in will conform by default to the standard Office appearance. However, with Microsoft Windows XP, you can choose from a number of visual styles (or themes) to customize the appearance of a Microsoft Windows program. Unless Windows themes are explicitly…


Outlook UI Issue: Save password setting not retained ?

One of my customer uses MS Windows XP SP3 & Outlook 2007 reported that whenever he tries to connect to the Internet service provider (ISP) to retrieve messages from POP3, his earlier entered password is not retained. He was pretty sure that  he chose to save the password. Also he tried to entering the correct…

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Outlook Programming Series # 9 : How to systematically release the objects – Add-in’s for Outlook 2003 & Outlook 2007 ?

Welcome to Outlook Programming series  # 9 In this series, we will learn “How to systematically release the objects – Add-in’s for Outlook 2003 & Outlook 2007 ?”. I found this MSDN article which describes how all Outlook add-ins should systematically release their references to Outlook objects when they are no longer needed. Failing to systematically release reference to…


Outlook Programming Series # 7 : How to change display Formats Programmatically for All Contacts in Outlook 2007?

Welcome to Outlook Programming series  # 7 In this series, we will learn “How to change display Formats Programmatically for All Contacts in Outlook 2007?”. I found this wonderful article which describes programatically how to create an add-in to change the FileAs property programmatically for all contacts in Microsoft Office Outlook 2007.  It covers the Microsoft Office Outlook 2007…

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Outlook Programming Series # 6 : Download Outlook 2007 Sample Add-ins (Outlook Object Model)?

Welcome to Outlook Programming series  # 6 In this series, we can download three of Outlook 2007 Sample add-ins make use of Outlook Object Model. I found this wonderful article, which describes programatically what are the enhancements to the Outlook 2007 object model, as demonstrated by three sample add-ins. These solutions are available in Visual Basic .NET and…

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Outlook Programming Series # 5 : How to build an Outlook 2007 Form Region with a Managed Add-In?

Welcome to Outlook Programming series  # 5 In this series, we will learn “How to build an Outlook 2007 Form Region with a Managed Add-In?”. I found this wonderful article, wrote by Ryan Gregg, which describes programatically how to build a form region with a Managed Add-in and Outlook 2007 environment. It covers the creation of a sample Outlook add-in…


Outlook Add-in : What is a COM Add-in? What You Need to Create a COM Add-in?

What is a COM Add-in? COM add-ins are a feature in Microsoft Office 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…

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Outlook Programming Series # 2 : How to develop a COM Add-in?

Welcome to Outlook Programming series  # 2 In this series, we will learn “How to develop a COM Add-in?”. I found this wonderful article, which provides an overview of how to create a COM add-in in Outlook 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:…

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