[Foreigner]

subuday77,

Код:

@echo off
setlocal

set /p dir="Choose Folder: "

pushd "%dir%" || echo Wrong Path && goto:eof

for /f "tokens=*" %%i in ('dir /b') do call:set "%%i"
for /f "tokens=2-4 delims=_=" %%i in ('set set_') do (

1>>"%~dp0report.txt" (

    echo.
    echo License: %%j
    echo --------------
    echo Extension: %%i:, Last number %%k
    echo.

)

    for /l %%l in (1001,1,1%%k) do call:check %%j %%l %%i
     
)

popd
goto:eof

:set

set "file=%~1"
set "set_%~x1_%file:~0,5%=%file:~5,3%"
goto:eof

:check

set "num=%2"
if not exist %1%num:~-3%%3 1>>"%~dp0report.txt" (echo     missing file: %1%num:~-3%%3)