The file api-ms-win-crt-runtime-l1-1-0.dll is a Dynamic Link Library (DLL) that is a part of Microsoft's Universal CRT (C Runtime), which is used in developing Windows applications. This specific DLL file acts as an "ApiSet Stub," essentially serving as an intermediary that redirects function calls to their actual implementations in other DLLs. It is a component used by various software programs that run on the Microsoft Windows operating system.
This file is commonly needed when you install or run third-party software, especially programs written in languages like C or C++. If you encounter an error related to this DLL, it's likely that the software you're trying to run requires a specific version of the Universal CRT that is not currently installed on your system. These errors might manifest as messages like "The program can't start because api-ms-win-crt-runtime-l1-1-0.dll is missing from your computer."
The most common solution to this issue is to install or repair the Microsoft Visual C++ Redistributable package, which contains the Universal CRT and other runtime libraries. You can download this package from the Microsoft website, and it's often included with software that requires it. Make sure you download the correct version (x86 or x64) corresponding to your system's architecture.