[alpap]

на zip не сложнее

Код:

@echo off
set "d=C:\Folder"
set "ar=%ProgramFiles%\7-Zip\7z.exe"
set "exp=7z"

pushd "%d%"
 for /f "delims=" %%a in ('dir /a-d/b "*.%exp%"') do "%ar%" x "%%a" -o"%%~na" -y
popd
pause