A: No – ac4bfsp.exe is only for single-player. Multiplayer has a separate executable ( ac4bfmp.exe ).
Ensure your Nvidia or AMD drivers are current. A mismatch between the game's rendering calls and the driver's capabilities can trigger entry point errors. Why "ac4bfsp.exe"? ac4bfsp.exe entry point not found
The "Entry Point Not Found" error for ac4bfsp.exe —the primary executable for Assassin's Creed IV: Black Flag A: No – ac4bfsp
Thus, ac4bfsp.exe is the primary executable file for the single-player campaign of Assassin’s Creed IV: Black Flag . When you launch the game, this process runs in the background. If Windows cannot find a specific function (entry point) inside a linked DLL (Dynamic Link Library) file, it throws the error. it throws the error.