Github上一个repo放了很多版本vcredist提取出来的文件，并且提供了提取方法
https://github.com/eladkarako/vc-archive

How To Flatten Setup Packages: Extracting cab/cab exe installers is simple, just use 7zip. Extracting MSI single-file archive into a folder, that still has the MSI script, so you could run it to install it, can be done using: msiexec.exe /a archive.msi /qb /l log.txt TARGETDIR="C:...target-dir...". Extracting Windows Installer XML (WiX), is possible with wix-toolset‘s dark.exe: dark.exe myinstaller.exe -x "C:...target-dir...", and repeating the MSI extract for each of the MSI-archives found under AttachedContainer/packages.

VS2013左右以后的vc_redist.exe采用Windows Installer XML (WiX)格式打包，需要使用wix-toolset解开

各版本VC++ Redist:
https://www.itechtics.com/microsoft-visual-c-redistributable-versions-direct-download-links