Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
Create an OU and a computer account for the laptop.
Give the user account that your visitor uses in your domain permission to join his laptop to domain (using ADUC delegate wizard in the laptop OU)
Then use command 'netdom join /domain:yourdomain /userd:visitor's_account /passwordd:*' at laptop to join it to your domain. You could create a shortcut from the command.
hope this helps