I am trying to install Office 2003 on my XP system. There was a problem with virus recently so I formatted the same. Now the setup that was working well is giving problem. I had used the same thing before also. At that time there was no error at all. But now when I tried to run the setup back I am facing problem with a missing file. The setup runs for a while and pops out a error. It is some YS561401.CAB missing error. I am not able to understand who can I get rid of this problem.