Will my NT licences Transfer to Win 2000

This is actually a very good question. I could not find a clear-cut answer on the MS website.

There are actually 2 parts to your question:

1. Per-server vs. per-seat licensing - generically, per-seat licensing requires 1 license per client, regardless of the number of servers. Except in certain situations, it is usually cheaper to go with the per-seat licensing mode once you grow beyond a single server.

2. NT4 vs. Win2K CAL - this is the sticky part. In general NT4 CALs cannot be substituted for Win2K CALs. Win2K CALs can be used to access NT4 server resources. With Microsoft's new licensing scheme, I suspect the answer will be that you need to change your CALs to Win2K as soon as you put the first Win2K server on your network.

Your best bet is to get this answer from the source, either directly from Microsoft or from the MS Licensing specialist available at most large MS resellers.

Good luck.

Well, this may have worked before Microsoft eliminated the Upgrade options as part of the Open License agreement. (July 31, 2002). My suggestion would be to get into the open license agreement with either Microsoft or a Microsoft Software reseller like Soft Choice.

DO you mean that you might later upgrade a NT 4.0 PDC to A Windows 2000 server domain controller? That might might be a whole different situation.

I do know that you are allowed to switch from "Per Server" to "Per Seat" Once, and only once without a legal option of switching back.

Overall, I think you are going to have start all over again with Windows 2000 server, if you go with per seat or per server this time.

Paul