question about windows server 2003?

[rega83]

i want a windows server 2003 that it allows to create more than 3 users,,,i mean joining 10 computer to windows server 2003,,i just can three users among computers,,i mean network id,,,when i want create user4 on the fourth computer ,it takes this error it say( your computer could not be joined to the domain because the following error has occured) ,access is denied ,,,which windows server 2003 allows that? please i need it

[deadmanwalking]

Was the server installed using the license option per seat option or per server option?

[rega83]

yes per server