You have to add an account for the laptop user that they logon to your computer with. When they want to map your printer, it will ask them for a username and password. Unless you have a domain controller, your computer will not be able to see accounts for others on the network. You aren't logging into a central point, you have many computers on your network. This means that winxp only sees whats accounts are on the machine you are using. XP is capable of doing what you want just by creating the user, going to security and removing the everyone group if it's still there, then add the account for the laptop user that you created. This way, nooone else cna print except for you as part of the administrators group, which should be there, and the laptop user who you have created an account for. Make sure to give them manage documents permissions if you want them to be able to cancel documents that are printing.