MovieMaker.exe (Launcher)
The thin launcher executable — VEH handler, LoadLibrary, and the single __cdecl call into the engine.
MovieMakerCore.dll (Engine)
The main engine — SundanceApp, storyboard model, HMREngine, HMRAVSource, Ribbon UI, serialization, publishing.
MovieMakerLang.dll (Resources)
The resource-only localization DLL — string tables, UIFILE markup, icons, and the version manifest.
MovieMakerPreviewClient.dll
The embedded preview-pane communication interface — window lifecycle, seek-and-render, transport, snapshots.