winxp as server...
I think I suggest you something.
in your situation you have always ability to buy NTserver license [Big Grin]

or, either buy a cheep 1000$ server with linux and samba preinstalled.
or even pre-configured.
or even do it yourself.

you get it all with a price of hardware and kixtart scripts there and free nt-domain if you want.

but your current setup is far from easy maintenance and reliability.
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