This is a simple reference table to determine which version of Microsoft Office 2003 service pack is installed on your computer.
Microsoft Office 2003 has the following version numbers for the original release and for the service pack releases:
Just locate the executable file in Office 2003 installation directory and verify the version of your Office program. Default location for these files in Office 2003 is : Program files\Microsoft Office\Office11
You do not have to install office 2003 sp2 if you have a later version of the files that are listed in the table.