: VBA code is unmanaged and stored directly within Office documents. VSTO uses managed code (.NET) stored in separate assemblies, enhancing security and maintainability .
is an authoritative resource designed to help VBA programmers transition from unmanaged macros to professional Office development using Visual Studio Tools for Office (VSTO) . VSTO for Mere Mortals (TM): A VBA Developer's G...
VSTO provides enterprise-level features that are difficult or impossible to achieve in VBA. : VBA code is unmanaged and stored directly