IWorksDiags methods overview Use the following table to quickly locate an IWorksDiags method by name or by description. Method Description See... CloseDiagsDialog Tells the plugin to close its diagnostics dialog box. “CloseDiagsDialog method” IsDiagsDialogOpen Obsolete. This method should be implemented as return E_NOTIMPL (0x80004001). ShowDiagsDialog Tells the plugin to open its diagnostics dialog box. “ShowDiagsDialog method”