dlo upgrade 7.5.1 to 7.6 - missing registry entry

hi,

as title states, i'm in the process of looking into performing an upgrade from 7.5.1 to 7.6.

however, when following this tech article http://www.symantec.com/business/support/index?page=content&id=TECH223671, i'm stuck at the part where is says to find the "dedupedbinstance" in the registry.

my registry seems to be missing this entry?  how is this possible and how can i rectify this before proceeding with the upgrade.

please help

thank you

Phil.