autodesk/migration/audits/launcher-source-architecture/autocad-launch-chain.md

AutoCAD/Plant launch chain

Confirmed static chain

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.