Throughout the months that we’ve sent out Energy Advisor articles, we have provided you with a numerous amount of useful scripts that serve various purposes, most of these scripts being written in VBA (Visual Basic for Applications). Both Microsoft and Esri have made strides to push users away from the continued use of Visual Basic, and as such, VBA support is not included by default in ArcGIS 10 (albeit still supported at the "Mature" level by Esri), and will be removed completely as of ArcGIS 10.1.