The iw6sp64_ship.exe error in Call of Duty: Ghosts typically prevents the single-player campaign from launching. This is often caused by missing software dependencies, incorrect display scaling, or hardware that does not meet DirectX 11 requirements. Common Fixes for "iw6sp64_ship.exe" Errors

Call of Duty: Ghosts famously refuses to launch on systems with less than 6GB of RAM. 

Method 2: Update Your Graphics Drivers (Free & Official)

An outdated driver cannot properly communicate with the game’s renderer. This is a 100% free fix—never pay for driver updater software.

There is nothing more frustrating than sitting down to relive the campaign of Call of Duty: Ghosts (or some chaotic Extinction mode), only to be greeted by a pop-up error:

Steps to limit cores:

Method 6: Add Exception to Windows Defender / Antivirus (Free)

False positives happen. Your antivirus may quarantine iw6sp64_ship.exe because it injects into memory (a common technique for game optimization, but also for malware). This prevents the game from launching.

Start with verifying game files, then disable the sun shadow cache, and you’ll likely be back to fighting the Federation within 5 minutes.

Now, launch the game. Administrative permissions often resolve memory access violations that cause the crash.