Use call instead of invoking separate cmd.exe

proenv.bat

@setlocal enabledelayedexpansion
@echo off
@CALL :normalizepath scripts_path "%~dp0"
@set env_text="%scripts_path%proenv.txt"

:: read the activte environment name
@set /p CONDA_NEW_ENV=<%env_text%

@set CONDA_SKIPCHECK=1
@set "CONDA_PREFIX=%CONDA_NEW_ENV%"

:: change directory if started from shortcut
set cwd="%cd%"
set shortcut=0
@IF /I %cwd% == "C:\windows\system32" (
    @set shortcut=1
)
@IF NOT x%cwd:Start Menu=% == x%cwd% (
    set shortcut=1
)
@SET "activate_path="%scripts_path%activate.bat" "%CONDA_NEW_ENV%""

:: pass activate path through endlocal barrier
@for /f "delims=" %%A in (""!activate_path!"") do (
    if %shortcut% == 0 (
        @endlocal & @set "CONDA_SKIPCHECK=1" & call %%~A
    ) else (
        @endlocal & @set "CONDA_SKIPCHECK=1" & @cd %CONDA_PREFIX% & cmd.exe /k "%%~A"
    )   
)   

@goto :eof

:normalizepath
    @SET "%1=%~dpfn2"
    @EXIT /B