does anybody subscribe to a list thats any good for windows 2k and windows nt 4.0 related questions? I need to know the following.. how long does it take to promote a nt 4.0 bdc to a pdc? (minutes or hours) and what gotcha's are involved? how long and what interruptions occur when switching the main win 2k server (hosting ad and exchange 2k) from per server licensing to per seat licensing? thanks in advance