Outlook 2010
HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Cached
Mode
Parameter:
DownloadOAB
Type: REG_DWORD
Value: 0
Outlook 2007
HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Cached
Mode
Parameter:
DownloadOAB
Type: REG_DWORD
Value: 0
