Missing OpenAL32.DLL – ArmA: Armed Assault
When trying to start ArmA you receive an error Unable to open dynamic link OPENAL32.DLL
When trying to start ArmA you receive an error Unable to install OpenAL / Returned value was: SomeNumber
When trying to start ArmA the game crashes.
Solution:
Download latest OpenAL installer from the OpenAL Website or from Creative Labs OpenAL download, install it and reboot.