@echo off

set VERSION=%1
set DOWNLOADFILE="%TEMP%\7z%VERSION%.exe"

if "%PROCESSOR_ARCHITECTURE%" == "AMD64" (
  set ARCH=-x64.exe
) else if "%PROCESSOR_ARCHITECTURE%" == "ARM64" (
  set ARCH=-arm64.exe
) else if "%PROCESSOR_ARCHITECTURE%" == "IA64" (
  echo exit 255
) else if "%PROCESSOR_ARCHITECTURE%" == "x86" (
  set ARCH=.exe
) else (
  echo exit 254
)

:: download 7zip
"%SYSTEMROOT%\System32\bitsadmin.exe" /transfer /download https://7-zip.org/a/7z%VERSION%%ARCH% %DOWNLOADFILE% >NUL

:: install 7zip
"%DOWNLOADFILE%" /S /D="C:\Program Files\7-Zip"