C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Black Ops III in your antivirus settings. Verify Integrity of Game Files (Steam) Right-click Call of Duty: Black Ops III Steam Library Properties Installed Files
If none of the above solutions work, you may need to reinstall the game.
This issue frequently surfaces during the launch of customized or repacked versions of the game. It can also occur on legitimate Steam copies due to missing system frameworks like DirectX, Visual C++ redistributables, or Windows Media Feature Packs. Top Fixes for "The Additional DLL Could Not Be Loaded" 1. Restore Deleted Files from Windows Defender
The most common cause is Windows Defender (or another antivirus) deleting critical game files during installation or startup. Windows Security Virus & threat protection Protection history It can also occur on legitimate Steam copies
Navigate to the game folder and delete:
The most frequent cause of this specific error is or third-party antivirus software flagging a game file as a "false positive" and moving it to quarantine.
The Black Ops 3 "Additional DLL could not be loaded" error is a solvable puzzle, not a permanent roadblock. By systematically working through the solutions—from verifying your game files and reinstalling Visual C++ to managing your mods—you are more than capable of fixing it yourself. and choose Install .
Sometimes the error strictly stems from missing dependencies required by the game engine. Modern Windows installations require specific redistributables to process multi-threaded application commands.
In 2026, the game is more alive on PC than most its age, thanks to community patches like the T7 Patch which fix security vulnerabilities and performance issues. How to Fix: "The Additional DLL Could Not Be Loaded"
If none of the steps above have worked, you're dealing with a more stubborn issue. Here's how to escalate your troubleshooting: Visual C++ redistributables
Instead, the screen flickered back to his desktop. A single, sterile Windows dialogue box sat in the center of his screen. Fatal Error: Call of Duty: Black Ops 3 - The additional DLL could not be loaded.
If your log files specifically pinpoint errors surrounding MFPlat.dll or cinematic components, your version of Windows lacks basic media capabilities. Go to Windows →right arrow Apps →right arrow Optional features . Click View features next to "Add an optional feature". Search for Media Feature Pack in the query bar. Check the box, click Next , and choose Install .
Less common, but missing dependencies can mimic a DLL error.
Did this error appear , or is this your first time installing the game? BO3 Problem additional dll couldn't be loaded : r/blackops3