Use Steam Input (Built-in, Free, Best). Fable: The Lost Chapters / Anniversary on Steam natively support Steam Input—no Xpadder/JoyToKey needed.
Fable.exe as "Non-Steam Game" → Same Steam Input support.Fable was designed for KB/M. Camera control, targeting, menu nav, hotkeys (1-9 spells/items) are superior on KB/M. Controller = couch comfort tradeoff.
Verdict: Add to Steam → Enable Steam Input → Pick Community Layout. Done.