Acquiring admin rights within a DOS batch script

This will make your DOS batch file ask for administrator rights. It creates and uses a small Visual basic script.

@echo off
rem GetAdminRights
>nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system"
if '%ERRORLEVEL%' == '0' goto AdminRightsOk
echo Requesting administrative privileges...
set params=%*
echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
echo UAC.ShellExecute %0,"%params%","","runas",1 >> "%temp%\getadmin.vbs"
cscript "%temp%\getadmin.vbs"
exit /B
:AdminRightsOk
if exist "%temp%\getadmin.vbs" del "%temp%\getadmin.vbs"
pushd "%CD%"
CD /D "%~dp0"