Macro security settings are applied to COM add-ins as well. How to: Re-enable a VSTO Add-in That Has Been Disabled article.ģ. If the problem that initially caused the application to soft disable the VSTO Add-in has not been fixed, the application will softĭisable the VSTO Add-in again. When you re-enable a soft-disabled VSTO Add-in, the application immediately attempts to load the VSTO Add-in. For example, an application might soft disable a VSTO Add-in if it throws an unhandled exception while the Startup event Soft disabling can occur when a VSTO Add-in produces an error that does not cause the application to unexpectedly close.

Handler in your VSTO Add-in is executing. It might also occur on your development computer if you stop the debugger while the Startup event

Hard disabling can occur when an VSTO Add-in causes the application to close unexpectedly. If an application does not load your VSTO Add-in, the application might have hard disabled or soft disabled your VSTO Add-in. Microsoft Office applications can disable VSTO Add-ins that behave unexpectedly. How to: Show Add-in User Interface Errors article.Ģ. You can use these messages to help determine why a custom Ribbon does not appear, or why a Ribbon appears but no controls appear. However, you can configure Microsoft Office applications to display messages for errors that relate By default, if an VSTO Add-in attempts to manipulate the Microsoft Office user interface (UI) and fails, no error message is displayed. Switch to Viewing mode to see the watermarks in the body of the document as expected. In editing view, labels with watermarks will only appear in the document header area. Go to Home > Sensitivity to change the label. There are plenty reasons why your add-in is not shown in Word. This doesn't impact labels applied to a file.

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