I have successfully loaded the compatibility pack on some computers using a 2003 version of Windows, but I am running into difficulties on two computers that use “MS Windows XP Pro version 2002 with SP2 installed” and Office XP which has word 2002 and SP3 installed). After downloading the compatibility pack (FileFormatConverter.exe) and running it, I get an error messages stating “Compatibility Pack for 2007 office System cannot be installed on this computer. The compatibility pack requires Microsoft Windows 2000 Service pack4, Microsoft windows server 2003 or Microsoft windows XP service Pack 1”. As I mentioned above, I already have SP3 installed. Just to be on the safe side, I tried downloading SP1 and SP3 again. The compatibility pack still does not install. Any suggestions would be greatly appreciated. Thanks