: This indicates it is the 64-bit version of the library (DLL), required for 64-bit games.
Modern iterations of x360ce (4.x versions and beyond) operate via a virtual device driver model using ViGEmBus (Virtual Gamepad Emulation Bus). Instead of placing specific files into individual game folders, modern versions run globally in the background, creating a permanent virtual Xbox 360 controller device within the Windows device manager. X360ce-lib64-r848-VS2010-zip Extra Quality
Ensure the game is actually running in 64-bit mode. If it is 32-bit, you need lib32 files, not lib64 . : This indicates it is the 64-bit version