@echo off
:: This batch file will compile a list of all directories,
:: change into each of the subdirectories, then 
:: rename all vxe files it finds to exe. Yes, there
:: are faster ways to do this. Code derived from:
:: http://www.ericphelps.com/batch/samples/alldirs.bat.txt
:: NOTE: This program uses the environment! You may need to
:: increase the size of your environment for it to work
:: properly. Put a line like this in your C:\Config.sys file:
:: shell=command.com /e:4096 /p
:: and then reboot your computer. No more environment problems!

:: Check if I can see myself. Needed so I can change
:: back to my home directory. You should ALWAYS use full
:: path and file name (like c:\utils\vxe2exe.bat) when
:: running this program. Or you can double-click it or
:: do drag'n'drops on it.
if not exist %0 goto DONE    
:: Change to my home directory if I'm not there already
%0\
cd %0\..

:: Make a line fragment
:: See http://www.ericphelps.com/batch/lines/frag-dbg.htm
echo e 100 "set dir="> script
echo rcx>> script
echo 8>> script
echo n setdir.txt>> script
echo w>> script
echo q>>script
debug < script > nul
del script

:: Now make a list of directories
echo Please wait while searching for and renaming vxe files...
dir c:\ /ad /b /s | find /v ":\RECYCLED" > directories.txt

:: Now process each line
:LOOPSTART
    rem Check to see if directories.txt is zero bytes
    dir directories.txt | find "directories.txt" | find " 0 " > nul
    if not errorlevel 1 goto DONE
    copy /b setdir.txt + directories.txt directories.bat > nul
    rem Create a new directories.txt minus the first line
    type directories.bat | find /v "set dir=" > directories.txt
    rem Trim the bat file so it only has the first line
    type directories.bat | find "set dir=" > directories.bat
    call directories.bat
    rem Change to the indicated drive and directory
    "%dir%\"
    cd "%dir%"
    rem ******************* MAGIC HAPPENS HERE *******************
    if exist *.vxe ren "*.vxe" "*.exe"
    rem ******************* MAGIC HAPPENS HERE *******************
    rem Change back to my home directory
    %0\
    cd %0\..
goto LOOPSTART    
:DONE

:: Clean up
del setdir.txt > nul
del directories.txt > nul
del directories.bat > nul