XP:multiple logon options

meyerworks, I guess if you really need to, you can probably setup a virtual machine on your computer, in which you assign it appropriate IP address and use NIC in bridged mode. I am talking about VMWare here, but you can also use Microsoft Virtual PC if you prefer.

You can create 2 virtual machines one is a member of domain A and the other is a member of domain B. All you have to do is load up your host machine then launch the guest operating system (Guest operating syste = VMWare image of the installed OS, something like that).

Alternatively there's a software named NetSwitcher at http://www.netswitcher.com/product_info.htm

leew... beaten :-(  my bad, I didn't see your post about NetSwitcher just above me.

I don't know declared that one could only be a member of a SINGLE domain.
Obviously , I ran into situation where i need access to different domains.

AS for netswitcher, VMs etc.. well i might as well just 'join the domain' manually after all.

Seems to me that in NT4, one could select from a list of several domains to join.

Is true, then, that Microsoft actaully spent enough effort to redesigned XP so that you can have at most 2 options to select
from at logon;

No, NT4 could NOT do that.  NT4 provided a list of TRUSTED domains for you to log on to - XP will do the same - but the domains must be setup to trust each other - no trust, no entry in the logon list.

Ok, different cause, same effect.
How are the domain trusts established?
( or did i just blow the point value?)

Leew's answer was a good one...