Microsoft KB Archive/933822

= Visual Studio Tools for the Microsoft Office System (VSTO) Outlook add-ins do not run when you use the Outlook View Control from a Web page =

Article ID: 933822

Article Last Modified on 3/20/2007

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APPLIES TO


 * Microsoft Office Outlook 2003
 * Microsoft Visual Studio 2005 Tools for the Microsoft Office System

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SYMPTOMS
When you use the Microsoft Outlook View Control from a Web page, Microsoft Visual Studio Tools for the Microsoft Office System (VSTO) Outlook add-ins do not run.



CAUSE
This issue occurs because the following conditions are true:
 * Outlook Microsoft Component Object Model (COM) add-ins do not always correctly unload. To work around this problem, VSTO Outlook add-ins are prevented from loading when the Inspector count or the Explorer count is less than one. This design only exists for Microsoft Office Outlook 2003 VSTO add-ins.
 * The Outlook View Control is not considered a part of the Outlook user interface. Therefore, the VSTO add-ins do not load correctly.

Keywords: kbexpertiseinter kbtshoot kbprb KB933822

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