Files
autodesk/migration/audits/p-rec-annot-legacy-loading/loading-chain.md
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Proven legacy loading chain

Unknown external bootstrap
  -> NETLOAD of deployed OrthoLoader.dll (not evidenced in audited directories)
  -> OrthoLoader.Ribbon.Initialize()
  -> subscribe ComponentManager.ItemInitialized
  -> OrthoLoader.Initialize()
  -> adjacent Settings.xml / Main/LoadAssemblies/LoadAssembly
  -> sequential acDoc.Editor.Command("._netload", fullPath) for 20 DLLs
  -> each DLL exposes CommandMethod commands
  -> Ribbon ItemInitialized creates PluginsOrtho tab and command buttons
Claim Evidence Confidence
Central loader is OrthoLoader.dll OrthoLoader/Ribbon.cs:151-156; deployed DLL metadata and Settings.xml High
Module list is read from adjacent Settings.xml OrthoLoader/Loader.cs:104-112 High
Module loading is programmatic ._netload, in XML order OrthoLoader/Loader.cs:63-81; configuration-map.csv High
Full DLL path is loader directory + configured filename OrthoLoader/Loader.cs:49, 65 High
Modules load from the same directory as OrthoLoader Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) in Loader.cs:49,65 High
Modules loaded directly from UNC true only if external bootstrap NETLOADed the deployed UNC copy; bootstrap is outside audit scope Unknown
Missing/failed module stops later loading and shows MessageBox single outer try/catch around the loop, Loader.cs:63-99 High
Ribbon owner is OrthoLoader OrthoLoader/Ribbon.cs:16-19,151-172,193-321 High
Initial bootstrap mechanism no LISP/CUI/ARG/REG/PackageContents file found in either audited directory Unknown

Assembly.LoadFrom occurs inside several legacy command implementations for secondary dependencies. It is not the mechanism used by OrthoLoader to load its configured modules. EnablerLoader separately uses Assembly.LoadFile for the Plant enabler from the host base directory.

No PackageContents.xml, *.bundle, registry demand-load registration, LISP, CUI, MNL, script, batch, or PowerShell bootstrap was found in the audited locations. This proves absence only within audit scope; it does not prove the workstation bootstrap did not exist elsewhere.