this may help, quoted from
http://www.ChicagoTech.net
How to access different domain without changing the network settings
To use a laptop to access to different domain without changing the domain settings, logon local machine (instead of domain) using your domain logon ID that also are created on your local computer. If it is possible, you may create the same logon id and password on all domain so that you always are able to access the domain you are connecting to. Also you may want to create one batch file like logon.bat with domain logon ID and password to map network drives.
Don't send e-mail or reply to me except you need consulting services. Posting on MS newsgroup will benefit all readers and you may get more help.
Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, Remote Access on
http://www.HowToNetworking.com
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.
I want to join WinXp pro to multiple domains. Every time i join it to a
domain and after to another one , the first one does not appear to the
list.How can i achive this?