error code: dummy3509

i installed server 2000 on a computer, forgetting to disconnect the network cord. once I realized, i immediately disabled the computer in AD. I forgot that i needed to run dcpromo from that computer to make the DC into a member server. is there any other way to do this.I read that if you can make it a secondary DC, then you can fix it. the DC is stabilized, but it still exist.I would appreciate any advice!