I have win2k3 ad in private net. It is for abc.com domain and it is running fine. I need to implement adc for gef.com and hij.com domain. I have only win2k server license. The question here is when I install win2k ad, should I choose existing forest or new forest with the first ad server? It is going to install in the same network. Can give trouble to the existing win2k3 ad (abc.com) domain?