Hi,
You mean Windows 2000 on the servers or on the workstations?
If you're talking about Fat clients, E810 runs great on
Windows 2000 SP4 workstations, XP SP2 runs OK though had
some annoying glitches with Debugger, TC and Workflow
crashing on French and Spanish Windows XP SP2.
On the server side, just Windows 2003 Server is supported.
On my humble opinion, I don't think there would be any
problem running E810 on Windows 2000 Server SP4, however
I STRONGLY RECOMMEND YOU TO STAY ON SUPPORTED PLATFORMS.
Regards,