[Zope] Un-Installing Zope Instances?

Folks Is there a need to "un-install" a Zope Instance? Scenario: I had installed under /directoryOne I copied it zope to /directoryTwo I manually edited the /bin/runzope file to reflect the new locations If I run ./runzope I get only the instance running I expect from /directoryTwo However, if I run ./zopectl start, I get my /directoryTwo and the old /directoryOne instance,

From this i assume that the databse also holds information about previous locations and instances, so I also summise from that that I must have to "un-install" my old copy properly somehow, not just delete the directory, is that correct?

thanks a lot, Regards, Russ