# AutoCAD/Plant launch chain

## Confirmed static chain

```text
User
  -> All_Serv_Install.exe Form1
  -> copy selected Plant 3D application folders to local Applications target
  -> Process.Start(P_Serv_Starter.exe, five configured arguments)
  -> P_Serv_Starter creates local _app_netload.lsp and copies launcher_starter.lsp
  -> P_Serv_Starter starts C:\AutoCAD User Support\p3d-support\start_plant_3d.bat
  -> [UNKNOWN: installed batch contents and auto-load registration]
  -> Plant 3D startup
  -> launcher_starter.lsp (when loaded)
  -> local app_netload.lsp
  -> _netload local Applications\P_Rec_Annot\OrthoLoader.dll
  -> OrthoLoader Settings.xml -> sequential ._netload configured modules
```

The final two steps are confirmed by the prior P_Rec_Annot legacy audit. The activation of `launcher_starter.lsp` is not directly implemented in `P_Serv_Starter`: `Program.cs:181` comments that `acaddoc.lsp` renames the generated file, while the copied LISP itself performs the rename and `load`. No matching installed `acaddoc.lsp`, batch file, or Applications directory existed on this workstation at audit time. Therefore automatic execution is `UNKNOWN`, not asserted.

## Source evidence

| Claim | Evidence | Confidence |
|---|---|---|
| User-visible installer starts configured object | `All_Serv_Install/Form1.cs:195-230` | CONFIRMED |
| Plant pattern object is `P_Serv_Starter.exe` | `All_Serv_Install/Settings.xml`, Plant 3D pattern | CONFIRMED |
| Five arguments include product, Applications target, settings, project and working directory | `Settings.xml` Plant pattern and `P_Serv_Starter/Program.cs:12-23` | CONFIRMED |
| Bootstrap generates `_app_netload.lsp` | `P_Serv_Starter/Program.cs:58-182` | CONFIRMED |
| Generated DLL modules use AutoLISP `_netload` | `P_Serv_Starter/Program.cs:146-151` | CONFIRMED |
| Bootstrap copies LISP and starts local batch file | `P_Serv_Starter/Program.cs:202-216,49-54` | CONFIRMED |
| Generated LISP is renamed, SupportPath updated and loaded | `P_Serv_Starter/launcher_starter.lsp:74-96` | CONFIRMED |
| Actual installed batch launches a specific Plant version | no installed batch was present | UNKNOWN |

## Historical source-only alternative

`All_Serv_Load/Addins/start_plant_3d.bat` contains a direct AutoCAD 2019 command using `/product PLNT3D /language "ru-RU"`, preceded by PlantCleaner and PnPPersistentCache cleanup. It is evidence only of that project's historical script; it is not evidence that current users start Plant 3D 2026 this way. No `/ld`, profile, LISP or script argument is present in that script.