## Agent uninstall

I deleted old agent (from a previous 10.0.0 zone) to be able to install my
new zone (10.0.2) agent.
I deleted the agent but on some computers, after a reboot, when I try to
deploy the new agent, I receive an error stating that the agent is already
installed but I don't have any Novell agent in add/Remove programs and no
Agent icon displayed.
I deleted some C:\Program Files\Novell\Zenworks files that were not deleted
by the uninstallation but it doesn't resolve my problem.
To do a clean manual uninstall, what else should I delete ?