I recently came across a PC that prompted me for the SKU011.CAB file everytime I ran an Office application. The verions of Office it listed was Office Professional 2003 so I popped in my Office 2003 Pro CD and tried to use that to replace the file. I was unable to find SKU011.CAB on the CD and after checking the CD Key in use discovered that Office 2003 Pro Enterprise was the actual version installed. Not having an Enterprise CD, I thought I was stuck.
Then I found the Local Installation Source Tool from Microsoft and was saved. I downloaded the tool and used the “Delete and disable LIS” option to remove the local installation source and after the next attempt to start and Office App I was off and running.
You can get the tool here: