WINDOWS LIVE APPLICATION INSTALLATION ERROR

hello there,
I am trying to install windows live application, but it is returning back an error message
Wlsetup-web.exe is not a valid win32 application." I am using windows XP professional sp3 operating system,and my pc has 1gb RAM, 1.66ghtz speed and 160gb space of hard disk.
Please someone advise me what to do.
Thank you.

