::::sorry if this is a repeat, my messages keep getting rejected by the listserv::::: Hi, Does anyone know if you can keep an Exchange 5.5 machine running and working on an existing NT 4.0 network, while also having the ADC connected and running/servicing my new W2K domain at the same time? Thanks, Jared __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/