When launching Outlook 2003, you get this message:
Microsoft Office Outlook
The add-in “C:\PROGRA~1\ESET\ESETNO~1\x86\EPLGOU~2.DLL” could not be installed or loaded. This problem may be resolved by using Detect and Repair on the Help menu.
To fix this, unload the ESET plugin from Outlook 2003:
In Outlook 2003, click Tools -> Options and select the Other tab. Click Advanced Options and click Add-ins Manager. Deselect the ESET Outlooko add-in and click OK.