True for Microsoft Word to disable in all documents all features introduced after the version of Word specified in the DisableFeaturesIntroducedAfterbyDefault property. The default value is False.
Assembly: Microsoft.Office.Interop.Word (in Microsoft.Office.Interop.Word.dll)
The DisableFeaturesByDefault property sets a global option for the application. If you want to disable features introduced after Word 97 for Windows for the document only, use the DisableFeatures property.