rezip_ren.cmd

@echo off

rem Try temp directory in a RAM-disk; if not available, use normal temp dir
set mytemp=R:\temp
if exist %mytemp%\nul set temp=%mytemp%
if exist %mytemp%\nul set tmp=%mytemp%

if exist %1 set arch345239874621=%1
if exist %1 goto ok

if exist %1.zip set arch345239874621=%1.zip
if exist %1.zip goto ok

echo Archive %1 or %1.zip not found!
goto fin

:ok

rem Name only, no extension
for %%z in (%1) do set name345239874621=%%~dz%%~pz%%~nz

if exist %name345239874621%.old.zip del %name345239874621%.old.zip
copy /b %arch345239874621% %name345239874621%.old.zip

del *.tmp
del $temp$.zip

rezip -comp -defl -rand_stable=23 %1

del %arch345239874621%
move %name345239874621%.repacked.zip %arch345239874621%

set name345239874621=
set arch345239874621=

:fin