Error "The expected version of the product was not found on your system"

Whenever i am trying to upgrade office 2003 pro to sp2 using office autoupdate then i am getting an error message saying "The expected version of the product was not found on your system". I want to know if anyone is aware of any solution for fixing this?? Thanks in advance.

I have checked regrading that error and have come across below article, just go through it and try out the steps mentioned for solving that error.
Error message when you install Office 2003 Service Pack 2: "The expected version of the product was not found on your system"

Hey that knowledge base article was really helpful, i just follow it and removed those Microsoft Office 2003 Web Components that were not required. I have now upgrade office 2003 pro to sp2 using office auto-update successfully.