I have found acadauto.chm (Acad ActiveX VBA Reference) for core AutoCAD VBA (see Attached)
The question: Where can I find the newest help file for AutoCAD MEP Active X VBA???
See related post at
http://forums.autodesk.com/t5/AutoCAD-Architecture/VBA-Based-Formula-Property-in-PSD-a-Hanger-soluti...
I have heard that VBA will not be supported at all in future versions... but VBA based code will work in VBScript Formula Properties.
