msvcp140_atomic_wait.dll is a DLL file developed by Microsoft Corporation as part of the Microsoft Visual Studio software suite. It is part of the Microsoft C Runtime Library and provides support for the _atomic_wait function.
This DLL is used by programs that are built with Microsoft Visual Studio and that require the _atomic_wait function. If you encounter an error related to this DLL, it could be due to a missing or corrupted file. In such cases, you can try reinstalling the program that is using the DLL or reinstalling Microsoft Visual Studio to restore the missing or corrupted file.