VC
MSC 1.0 _MSC_VER == 100
MSC 2.0 _MSC_VER == 200
MSC 3.0 _MSC_VER == 300
MSC 4.0 _MSC_VER == 400
MSC 5.0 _MSC_VER == 500
MSC 6.0 _MSC_VER == 600
MSC 7.0 _MSC_VER == 700
MSVC++ 1.0 _MSC_VER == 800
MSVC++ 2.0 _MSC_VER == 900
MSVC++ 4.0 _MSC_VER == 1000 (Developer Studio 4.0)
MSVC++ 4.2 _MSC_VER == 1020 (Developer Studio 4.2)
MSVC++ 5.0 _MSC_VER == 1100 (Visual Studio 97 version 5.0)
MSVC++ 6.0 _MSC_VER == 1200 (Visual Studio 6.0 version 6.0)
MSVC++ 7.0 _MSC_VER == 1300 (Visual Studio .NET 2002 version 7.0)
MSVC++ 7.1 _MSC_VER == 1310 (Visual Studio .NET 2003 version 7.1)
MSVC++ 8.0 _MSC_VER == 1400 (Visual Studio 2005 version 8.0)
MSVC++ 9.0 _MSC_VER == 1500 (Visual Studio 2008 version 9.0)
MSVC++ 10.0 _MSC_VER == 1600 (Visual Studio 2010 version 10.0)
MSVC++ 11.0 _MSC_VER == 1700 (Visual Studio 2012 version 11.0)
MSVC++ 12.0 _MSC_VER == 1800 (Visual Studio 2013 version 12.0)
MSVC++ 14.0 _MSC_VER == 1900 (Visual Studio 2015 version 14.0)
MSVC++ 14.1 _MSC_VER == 1910 (Visual Studio 2017 version 15.0)
MSVC++ 14.11 _MSC_VER == 1911 (Visual Studio 2017 version 15.3)
MSVC++ 14.12 _MSC_VER == 1912 (Visual Studio 2017 version 15.5)
MSVC++ 14.13 _MSC_VER == 1913 (Visual Studio 2017 version 15.6)
MSVC++ 14.14 _MSC_VER == 1914 (Visual Studio 2017 version 15.7)
MSVC++ 14.15 _MSC_VER == 1915 (Visual Studio 2017 version 15.8)
MSVC++ 14.16 _MSC_VER == 1916 (Visual Studio 2017 version 15.9)
MSVC++ 14.2 _MSC_VER == 1920 (Visual Studio 2019 Version 16.0)
MSVC++ 14.21 _MSC_VER == 1921 (Visual Studio 2019 Version 16.1)
MSVC++ 14.22 _MSC_VER == 1922 (Visual Studio 2019 Version 16.2)
``
```c
msvcrt* 是 VC 6 及之前的 VC runtime ，
c 和 c++ 的函数都在一个文件msvcr* 是 VC7 到 VS2013 的 ，
c 对应 msvcr*.dll ， c++ 对应 msvcp*.dll如 @叶名琛 所说
VS2015 已经没有msvcr140.dll了,
只有msvcp140.dll,
crt dll已经被拆成了两个dll:ucrtbase.dll,包含标准c库的内容;
vcruntime140.dll,包含vc++所用到的一些基础支持特定内容.
编译用的 VC 版本和链接到的 vc runtime 版本对应如下ucrtbase.dll vcruntime140.dll msvcp140
MSVC++ 14.2 _MSC_VER == 1920 (Visual Studio 2019)
MSVC++ 14.1 _MSC_VER == 1910 (Visual Studio 2017)
MSVC++ 14.0 _MSC_VER == 1900 (Visual Studio 2015)
msvcr120 MSVC++ 12.0 _MSC_VER == 1800 (Visual Studio 2013)
msvcr110 MSVC++ 11.0 _MSC_VER == 1700 (Visual Studio 2012)
msvcr100 MSVC++ 10.0 _MSC_VER == 1600 (Visual Studio 2010)
msvcr90 MSVC++ 9.0 _MSC_VER == 1500 (Visual Studio 2008)
msvcr80 MSVC++ 8.0 _MSC_VER == 1400 (Visual Studio 2005)
msvcr71 MSVC++ 7.1 _MSC_VER == 1310 (Visual Studio 2003)
msvcr70 MSVC++ 7.0 _MSC_VER == 1300
MSVC++ 6.0 _MSC_VER == 1200
MSVC++ 5.0 _MSC_VER == 1100之前的 c 和 c++ runtime 是在一个文件的msvcrt.dll 是 VC 5.0 , 6.0 的
msvcrt40.dll 是 VC 4.x CRT DLL (Forwarded to msvcrt.dll) 大小60k 直接转发到 msvcrt.dllmsvcrt20.dll 是 VC 2.x 的