NT upgrade; multiple steps

Archived from groups: microsoft.public.windowsnt.misc (More info?)

In the process of planning upgrade for multiple networks and integration.
Want to replace office NT Workstation with WinXP Pro on the office network
first, then the office NT servers to 2003 second, and finally, the audio
network servers from NT to 2003 and workstations from NT to XP Pro.

Problems? Can not use TCP/IP at this time because integration with audio
network that doesn't play well with TCP/IP. Currently have to use NetBeui
for the three integrated networks. We have a separate network for internet
access, and do not allow access to the outside on the main networks.

Any advise or reading materials would be greatly appreciated.

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CDL