SKU1CA.CAB file not found

I had a customer today report that when loading Microsoft Excel 2003 the machine kept prompting for the SKU1CA.CAB file.

That pointed me to this article, which turned out to be a dead end….

The answer, in fact, was to go into the registry of the local machine and browse to:


In here, I changed the CDCache from 2 to 0


On reload of Excel, all was fixed!