Hello.

These errors are usually raised when some DLLs are corrupted or missing or when they are replaced with an incompatible version. It may also happen that you placed a DLL file in the game folder that is loaded instead of the genuine one. Possible solutions:

• Verify the integrity of the game cache using Steam.
• Re-install DirectX.
• Uninstall the Visual C++ 2013 Redistributable package (both x86 and x64 version), restart your computer and install the package again (do not use the Repair function).
• Run the Windows System File Check tool to repair corrupted system files.
• If you are using post-processing tools like Reshade or SweetFX or utilities like RadeonPro remove them.
• Re-install the game; remove all files from the game installation folder and then verify the integrity of the game cache using Steam.
• To identify the precise DLL that is causing an issue.
  • Download a 64-bit version of the Microsoft Dependency Walker and open arma3_x64.exe with it. The libraries with a red icon are the corrupted ones.
  • Download a 32-bit version of the Microsoft Dependency Walker and open arma3.exe with it. The libraries with a red icon are the corrupted ones.

I start dependency walker scan and result=all api-ext files (error opening files).

And now other used battleeye games not working(Rainbow6).

Have you tried reinstalling Visual C++ 2013 Redistributable package?