All: We are a small business, 1 exchange server/PDC and 1 BDC all NT4 at this point We are slowly moving to win 2000 and our first task is to upgrade to exchange 2000 on a new machine from exchange 5.5 (on nt4 sp6).I have read you need to be on sp3 of exchange 5.5 in order to migrate. Is this true and if so can anyone tell me why? This just adds another complication to the process which I really dont need. Thanks in advance for your help. Dennis
List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm