SubfoldersMaker.bat

@echo off
setlocal enabledelayedexpansion
if "%~1" == "" goto checkinst
del %1 2>nul
echo Enter subfolders to create. e.g.: sub dir\another sub dir\and more...
set /p dirs=
set dirs=%dirs%
if "%dirs%" == "" (
  echo Aborted.
  pause
  goto :eof
)
md %~dp0\%dirs%
if %errorlevel% == 0 echo Subfolders successfully created.
pause
goto :eof

:checkinst
reg query hkcr\.subdirs /v "" 2>nul >nul
if %errorlevel% == 0 goto uninst
choice /n /m "Subfolders Maker is not yet installed. Install it now [Y/N]?"
if %errorlevel% == 2 goto :eof
if %errorlevel% == 0 goto :eof
reg add hkcr\.subdirs /v "" /d subdirs >nul
if errorlevel 1 (
  pause
  goto :eof
)
reg add hkcr\.subdirs\shellnew /v command /d "%~f0 ""%%1""" >nul
reg add hkcr\subdirs /v "" /d Subfolders >nul
echo Subfolders Maker has been installed.
echo Use the "New > Subfolders" right-click popup menu to create subfolders.
echo Reopen Explorer window if the "Subfolders" menu item is not shown.
pause
goto :eof

:uninst
choice /n /m "Subfolders Maker is already installed. Uninstall it now [Y/N]?"
if %errorlevel% == 2 goto :eof
if %errorlevel% == 0 goto :eof
reg delete hkcr\.subdirs /f >nul
if errorlevel 1 (
  pause
  goto :eof
)
reg delete hkcr\subdirs /f >nul
echo Subfolders Maker has been uninstalled.
choice /n /m "Delete this batch file too [Y/N]?"
if %errorlevel% == 2 goto :eof
if %errorlevel% == 0 goto :eof
start "" /min cmd.exe "/c timeout 1 & del "%~f0""