List all domain controllers

With native Windows 2000 commands:

    NETDOM QUERY /D:MyDomain DC

NETDOM is part of the support tools found in the \SUPPORT directory of the Windows 2000 installation CDROM.

With (native) Windows Server 2003 commands (Active Directory only):

    DSQUERY Server

or, if you prefer host names only (tip by Jim Christian Flatin):

    DSQUERY Server -o rdn