X360ce [work] [BEST]
The emulator works by placing a fake xinput1_3.dll in a game's folder. This is a classic DLL proxying technique. The paper likely details how to forward untouched calls to the real system DLL while modifying specific functions ( XInputGetState , XInputSetState ) — a clean, non-invasive method.
Despite its utility, x360ce is not without limitations: x360ce