The missing Steam_api64.dll file is an indication that you do not have DirectX installed on your computer. Various Steam features and functions are accessed by some Steam games with the help of this component only. The Steam_api64.dll is a necessary component of the Steam program. Try reinstalling the program to fix this problem” is the error that appears when the Steam client is unable to find the required DLL file in your installation folder. “The program can’t start because steam_api64.dll is missing from your computer.
