Hello Dave,
There's no built-in support to programmatically unload a COM Add-in.
However, there's a possible workaround deserving your consideration.
The addInInstance object in the Connect class can be casted to the type
Microsoft.Office.Core.COMAddIn. It has a property "Connect" to set the
active state of the add-in. Thus, you may want to set
this.addInInstance.Connect = false; in OnStartupComplete. The problem is
that, Connect=false does not unload the add-in, instead, it disables the
add-in. After the run, the add-in's LoadBehavior value in registry will
become "2" which means "disabled". And in the next run of winword, the
add-in won't be loaded until users/programs change the LoadBehavior value.
Regards,
Jialiang Ge (
[email protected], remove 'online.')
Microsoft Online Community Support
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