Microsoft Outlook Temporary OLK Folder Location

Use the following registry keys to help identify where your OLK folder is located.

Outlook 97 HKCU\Software\Microsoft\Office\8.0\Outlook\Security
Outlook 98 HKCU\Software\Microsoft\Office\8.5\Outlook\Security
Outlook 2000 HKCU\Software\Microsoft\Office\9.0\Outlook\Security
Outlook 2002/XP HKCU\Software\Microsoft\Office\10.0\Outlook\Security
Outlook 2003 HKCU\Software\Microsoft\Office\11.0\Outlook\Security
Outlook 2007 HKCU\Software\Microsoft\Office\12.0\Outlook\Security
Outlook 2010 HKCU\Software\Microsoft\Office\14.0\Outlook\Security

This will assist you in troubleshooting attachment problems in Outlook or other features of MSO Outlook.