Had an older Windows XP machine with Office 2003 pop up with the below error when a new user logged on and tried to open Outlook.

Microsoft Office Professional Edition 2003

Error 1311: Source file not found: <file path>\SKU011.CAB. Verify that the file exists and that you can access it.

Clicking Retry/Cancel unfortunately didn’t progress to anything further but hunting around the below registry change appeared to help resolve.


1. Open Regedit
2. Browse to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\11.0\Delivery\{90000409-6000-11D3-8CFE-0150048383C9}\
3. Find the CDCache entry and change it to 0
4. Office should now load up or at least allow a repair install which is what we did to resolve.