I'm trying to create an exact copy of our live network in a test lab environment for future testing. We currently have 2 W2K Servers, and i've just added a third DC. Used the active directory wizard, and everything worked fine. Now i want to remove the third server from the live network, and have it be the DC for my testlab. If i use DCPROMO and select "This server is the last domain controller in the domain", will this remove the server from the live network, and if so will it mess up my live W2K servers?