Enter a machine in two different domains

No that't not possible.
You can only belong to 1 domain.
The laptop has to belong to only a workgroup , not domain.
Then you have to nake sure the local accounts on the laptop are the same as the domain accounts (username and password)

Then they can access the resources to both domains.

Leopold

You can setup 2 different NIC PC-cards joined two different domains. Setup 2 different hardware profile and each associate with one NIC to one domain. When you boot up laptop, you should see the choice for hardware profile and pick the one you need. Let me know how it works for you.

Try Mobile Net Switch. It can be obtained at http://www.mobilenetswitch.com/ The program allows one to switch workgroups or domains without rebooting.

Hope this helps

YES, it is possible to have a computer be part of two different domains, just not at the same time.
When a computer is part of the domain, and a user logs in, a profile is created in the Document and Settings folder with the user name. If that computer joins a NEW domain, and a user logs into the domain a new profile will be created with the folder username.domainname format. Users can switch between profiles, as they switch domains. The same things happens when trusted domains are created, and multiple domains are shown in the drop down list on the login screen. A profile will be created for each user, in each domain. The probems come in with the My Documents folder and maybe others. Its not available from domain A, when logged into domain B.

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