WLMFDS.dll (MF ↔ DirectShow Bridge)
The Media Foundation / DirectShow compatibility bridge — legacy content through the modern pipeline.
WLMFReadWrite.dll (MF Reader/Writer)
Flat C exports over the Media Foundation source reader and sink writer — open, read frames, write, finalize.
WLXMP4Parser.dll
The MP4 container parser — bounds-checked box walker with capped trak counts, plus DirectShow graph helpers.
WLXTranscode.exe
The headless transcode helper — COM-activated out-of-process transcode worker for the publish pipeline.
WLXCodecHost.exe
The out-of-process COM codec host — isolating codec bugs from the editor process.