c# Programming Glossary: standardolemarshalobject
VSTO Add-ins, COMAddIns and RequestComAddInAutomationService http://stackoverflow.com/questions/10875278/vsto-add-ins-comaddins-and-requestcomaddinautomationservice the code several times now and the method to derive StandardOleMarshalObject to ameliorate the exception does not work System.InvalidCastException.. ClassInterfaceType.None public class AddinUtilities StandardOleMarshalObject IAddinUtilities void IAddinUtilities.DisplayMessage MessageBox.Show.. regardless of whether or not AddinUtilities derives from StandardOleMarshalObject. I am at a loss here as the MSDN Blog specifically says To fix..
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