About 3 years ago I installed Zenfd 4 on all three of our NW 6 servers
but I did something wrong because I never could get it to work. About
6 moniths ago I replaced one of the servers with new hardware and a
fresh clean install of NW 6.5 so Zen is not on this server. Now I want
to install Zen 6.5 for desktops but how do I remove the Zen 4 that is
still on the old servers?