drag-drop file different

diff.bat

@echo off
echo 'files : %1   %2'
echo 1- visual studio 2- vscode 3- winmerge
set /p k=Enter Num: 
echo %id%

if "%k%" == "1" (goto vsu)
if "%k%" == "2" (goto vsc)
if "%k%" == "3" (goto vme)

:vsu
setlocal
set vspath=C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\IDE
start "Compare files" /B /MIN "%vspath%\devenv.exe" /diff %2 %1 First:'%2' Second:'%1'
exit

:vsc
start  code --diff  %2 %1 
exit

:vme  
  start "WinMerge" /B "C:\Program Files\WinMerge\WinMergeU.exe" /u /wl /e "%1" "%2" /dl "%1" /dr "%2"
exit
# res: https://github.com/VerifyTests/DiffEngine/blob/26445e19eee0b35ac4eb45ab47a7f8394b16257c/docs/diff-tool.md