How to set environment variables for MSVC++ cl.exe compiler alongside older versions?

[Hana_bchna]

Hello I've installed MSVC++ 6.0 in my computer so it has set the environment variables.

No I've installed MSVC++ 2019 but when I go to Computer properties->advanced system settings->Environment variables

Include contains only C:\Program Files (x86)\Microsoft Visual Studio\VC98\atl\include;C:\Program Files (x86)\Microsoft Visual Studio\VC98\mfc\include;C:\Program Files (x86)\Microsoft Visual Studio\VC98\include

and the remaining path, libs... all contains folders of MSVC++6 but not 2019.

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  I need this because sometimes I want to compile my C++20 code from CMD not from IDE.
  
  
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  I've run as administrator VsDevCmd.bat but it didn't make changes!
  
  
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  So how can I set the environment variables for visual Studio 2019? Thank you!
  

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