Microsoft C Runtime Jun 2026

Implements standard functions like printf , malloc , fopen , and math routines.

| Visual Studio | CRT DLL(s) | Modern name | |---------------|------------|--------------| | VS 2005 | msvcr80.dll | Legacy | | VS 2008 | msvcr90.dll | Legacy | | VS 2010-2013 | msvcr100.dll – msvcr120.dll | Legacy | | VS 2015+ | ucrtbase.dll + vcruntime140.dll | Universal CRT | microsoft c runtime

If an app fails to run with a message stating a msvcrXXX.dll is missing, it was likely built with an older version of Visual Studio and requires the Microsoft Visual C++ Redistributable installed. Implements standard functions like printf , malloc ,