A: Yes. The modules are installed into different registry hives and different AutoCAD versions. They do not conflict.
Visual Basic for Applications (VBA) remains a popular programming environment used to automate repetitive drafting and design workflows. Beginning with AutoCAD 2010, Autodesk excluded the Microsoft VBA engine from the standard installer to reduce the application footprint and push developers toward modern APIs like VB.NET or C#. autocad 2013 vba module 64-bit
AutoCAD 2013 uses VBA 6 , which is a 32-bit engine. Even when installed on 64-bit AutoCAD, it runs as an "out-of-process" 32-bit application. A: Yes