For anyone following this thread. We found the answer today. It is a common
Outlook 2007 problem-evidently. You have to go to your user dir/ local
settings/microsoft/outlook folder. Delete the extend.dat file

"CFDB" wrote:

On loading Outlook full message is.. The Add-in "Outlook Scan" (
C:\program...) cannot be loaded and has been disabled by Outlook. Please
contact Manuf for update or uninstall Add-in.

We removed the orginal virus software, this is looking for the old one.