Microsoft C Runtime 95%

: Smaller executable size; updates to the DLL benefit the app automatically.

Before your main() or WinMain() function runs, the CRT initializes the stack, sets up global variables, and prepares the environment. The Shift to the Universal C Runtime (UCRT) microsoft c runtime

Your app references the CRT as a DLL (e.g., msvcr140.dll ). This keeps file sizes small and allows the OS to update the library centrally, but requires the target machine to have the correct Visual C++ Redistributable installed. 3. Essential Security & Features : Smaller executable size; updates to the DLL

The next time you see a VCRUNTIME140.dll error, don't groan. Take a moment to appreciate the complex, layered history of software engineering — and then go install the redistributable from Microsoft. : Smaller executable size