often occurs when system dependencies are missing or security software blocks the game's launcher Direct Fixes Install OpenAL
If the announcement was for current FAA employees only (internal merit promotion), external applicants will see “Application Not Found” even if the job is still open.
Some players have found that the game fails to launch without giving a specific error because (Open Audio Library) is missing from the system. Check your "Apps & Features" to see if OpenAL is installed.
If "Top" refers to or another airport expansion pack (often labeled "Tower" or "Top" in translation variations), these add-ons usually require the Base Game to be installed first. If you are trying to run an expansion without the base game installed, you will receive an "Application not found" or "File not found" error.
"C:\Program Files (x86)\Steam\steamapps\common\I am an Air Traffic Controller 4\ATC4.exe"