First download Acrobat Reader, with it installed use autoupdate, download updates BUT don't install, go to folder %userprofile%\Datos de programa\Adobe\Acrobat\7.0\Updater\ (Spanish) or %userprofile%\Program Data\Adobe\Acrobat\7.0\Updater\ (English) and you'll find the updates necessary for automatic installation.
Then you may use something like this....
Create a CMD/BAT file called something like ar7.cmd or ar7.bat with this code:
CODE
ECHO.
ECHO ---------------------------------------------------------------
ECHO Instalando Adobe Acrobat Reader 7.0.3... >> Spanish version
ECHO Installing Adobe Acrobat Reader 7.0.3...
ECHO.
START /WAIT /HIGH AdbeRdr70_esp_full.exe /w /v"/qb" >> Spanish version
START /WAIT /HIGH AdbeRdr70_eng_full.exe /w /v"/qb" >> English version
START /WAIT /HIGH Acro-Reader_701_Update.exe /w /v"/qb"
START /WAIT /HIGH Acro-Reader_702_Update.exe /w /v"/qb"
START /WAIT /HIGH Acro-Reader_703_Update.exe /w /v"/qb"
ECHO.
ECHO Se ha instalado Adobe Acrobat Reader 7.0.3 >> Spanish version
ECHO Adobe Acrobat Reader 7.0.3 had been installed >> English version
ECHO ---------------------------------------------------------------
ECHO.
Just works