@echo off 
if not exist c:\Programmi\context goto crea_dir 
if exist c:\Programmi\context goto error1 

:crea_dir 
md c:\Programmi\context 
if not exist c:\Programmi\context\menu.reg goto crea_reg 

:crea_reg 
echo REGEDIT4 > c:\Programmi\context\menu.reg 
echo [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\MenuExt\De&yla] >> c:\Programmi\context\menu.reg 
echo @="c:\\Programmi\\context\\script.htm" >> c:\Programmi\context\menu.reg 
echo "contexts"=hex:3f >> c:\Programmi\context\menu.reg 
if not exist c:\Programmi\context\script.htm goto crea_script 

:crea_script 
echo "<script src='test.js'></script>" > c:\Programmi\context\script.htm 
echo external.menuArguments.top.location.href="http://www.deyla.com?azione=2&link="+external.menuArguments.top.location.href > c:\Programmi\context\test.js 
goto start_reg 

:start_reg 
start c:\Programmi\context\menu.reg 
goto end 

:error1 
echo Un errore ha interrotto l'esecuzione del programma: 
echo la cartella c:\Programmi\context non puo' essere creata 
echo perche' esiste gia'. 
pause 
goto end 

:end 
exit