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Installation

Auto Cross Section has no installer: it is a VBA project (.dvb file) that you load into AutoCAD. The package downloaded from the link received with your purchase is a .zip file containing:

File What it is
acad.dvb (older releases: acad_2016-17-18.dvb) the macro
Carta Tecnica 2000.dwg a sample drawing with contour lines at their elevation, to try it out
Readme.txt link to the video tutorial

1. Before you start

  1. Make sure you have full AutoCAD and the VBA module installed (see Requirements).
  2. Extract the zip into a permanent folder, for example C:\Geostru\AutoCrossSection\ (not Downloads or the Desktop: AutoCAD will need to find the file at every start).

2. Loading the macro

  1. Start AutoCAD and open the drawing with the contour lines.
  2. At the command line type VBALOAD and press Enter (or menu Tools › Macro › Load Project…).
  3. Select acad.dvb (or acad_2016-17-18.dvb) and confirm.
  4. If the security warning "The file is in an untrusted location" appears choose Load (or Always Load).
  5. When asked about macros choose Enable Macros.

Alternatively: Manage › Load Application

APPLOAD (Manage tab › Applications › Load Application) loads .dvb projects too. If selecting the file gives an error, the VBA module is missing (see Requirements): with the module installed the two commands are equivalent.

3. Showing the Geostru menu

The commands are used from the Geostru menu in the AutoCAD menu bar. After loading, the menu has to be created once:

  1. Press Alt+F8 (or type VBARUN, or Manage tab › Applications › Run VBA Macro, or menu Tools › Macro › Macros…).
  2. In the list select Gestione_menu.aggiungi_menu and press Run.
  3. The Geostru entry appears in the menu bar, with the DrawSection and Hydrologic Risk submenus.

The menu does not show up?

In workspaces with the ribbon (Drafting & Annotation, 3D Modeling) the menu bar is hidden by default, so the Geostru menu is created but not visible. Type MENUBAR, press Enter and set it to 1: the menu bar appears with the Geostru entry. From build 2026.1 the macro sets MENUBAR by itself. More cases in the FAQ.

4. At the next AutoCAD start

The .dvb project is not kept loaded when AutoCAD closes. In the next session:

  • Build 2026.1 and later, automatic loading. Copy acad.dvb into the Support folder of your AutoCAD profile, for example C:\Users\<user>\AppData\Roaming\Autodesk\AutoCAD 2024\R24.3\enu\Support\ (type %APPDATA%\Autodesk in the File Explorer address bar to get there). At start-up AutoCAD automatically loads a file named acad.dvb found in its support paths and the macro creates the Geostru menu on its own. The first time, accept the security prompt with Always Load.
  • Manual loading (all releases): repeat VBALOAD and, if the Geostru menu is missing, Alt+F8 › Gestione_menu.aggiungi_menu.

Installed build

From build 2026.1 the menu entry Geostru › Version shows the build in use and the path of the loaded file: quote them when you open a support ticket.

Uninstalling

Unload the project with VBAUNLOAD (or VBAMAN › Unload), delete the .dvb file and, to remove the menu, CUI › ACAD group › Menus › delete Geostru. Settings are stored in the Windows registry under HKEY_CURRENT_USER\Software\VB and VBA Program Settings\Geostru Autocad.