# c++ – Building boost for different versions of Visual Studio

I have Visual Studio 2019 and 2022 installed. I want to build boost libraries for 2019 vc142. How do I build vc142 libs instead of vc143?

My current method for building is as follows. I’m using Developer Command Prompt for 2019, and running the following,

1. bootstrapper.bat
2. b2.exe install --prefix=MY_PATH

Unfortunately the output lib files are all vc143. I’ve also tried commenting out IF "%1"=="vc143" SET TOOLSET=msvc : 14.3 in bootstrap.bat with no success. One of the first outputs when running bootstrap.bat is Found with vswhere C:Program FilesMicrosoft Visual Studio2022Community. I suspect this could be the problem