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I am getting a fatal crash error message 'Include file z\ace\addons\main\script_mod.hpp not found.' when opening Arma 3 from the launcher. This is then followed by 'The exception unknown software exception (0x0000dead) occurred in the application at location 0x00007FF8E5A39E08' and then generates a fault report (see attached).

I used to use mods but I have unsubscribed/deleted all mods and my profile folder so it is no longer referencing any save files that might have used these in the past.

I have uninstalled and reinstalled Arma 3 in Steam and verified the integrity of game files once this has been done. Again, no mods have been installed. I have tried this on the stable and development builds of the program, each one getting the same error.

Arma used to run fine when I was using the integrated graphics but I have recently installed a graphics card. Searching the fault tracker site showed no fixes and only one suggestion about downgrading the nVidia driver (currently on 381.89): I have downgraded to previous versions but keep getting the same crash, making Arma completely unplayable.

Kind regards


Operating System
Windows 10 x64
Operating System Version
Home Creators Update
Error Message
Steps To Reproduce

Play Arma 3 from Luancher or running from .EXE. Happens both with and without mods.

Additional Information

Event Timeline

dedmen closed this task as Resolved.May 27 2020, 10:42 AM
dedmen claimed this task.