Where XP (and other Windows releases) puts links to autoexecutables on starting SO

use regedit.exe

search

\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

or:

\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

or (use filemanager)

documents and settings \ %user%\Menu Avvio\Programmi\Esecuzione automatica\

where %user% :

c:\documents and settings\%user% per Windows 2000/Xp e Server 2003

or

c:\users\%user% per Windows Vista/7 e Server 2008