Need help with DHCP

The following TechNet article Q173040 describes my exact problem. The server is running NT 4.0 SP 6a I followed the instructions and went to create the folder winnt\system32\dhcp and it was already there. I’m new to the company but I suspect the server was running dhcp in the past. I tried deleting the dhcp folder and reinstalling dhcp but still get the same error message when I reboot. No files were ever written to the Winnt\system32\dhcp folder.

Any Ideas?