@echo off
if "%1" == "932" goto cp932
if "%1" == "back" goto back

reg copy "HKCU\Console\%%SystemRoot%%_System32_cmd.exe"  "HKCU\Console\__backup_cmd"  /f 2>nul  >nul
reg add "HKCU\Console\%%SystemRoot%%_System32_cmd.exe" /v CodePage /t REG_DWORD /d 932 >nul
reg add "HKCU\Console\%%SystemRoot%%_System32_cmd.exe" /v FontFamily /t REG_DWORD /d 54 >nul
reg add "HKCU\Console\%%SystemRoot%%_System32_cmd.exe" /v FaceName /d "MS Gothic" >nul

@echo on
set var=a
set var
chcp

pause
start  %~s0 932

goto :eof

:cp932
@echo off
reg delete "HKCU\Console\%%SystemRoot%%_System32_cmd.exe" /f 2>nul  >nul
reg copy "HKCU\Console\__backup_cmd"  "HKCU\Console\%%SystemRoot%%_System32_cmd.exe"  /f 2>nul  >nul
reg delete "HKCU\Console\__backup_cmd" /f 2>nul  >nul

@echo on
chcp
set var
set var=b
set var

pause
start  %~s0 back
exit

:back
@echo on
set var
chcp
pause
exit