Well I know that windows xp professional services pack2 is not sporting more then 10 users connect at the same time. I am using windows xp professional in a small more then 35 user organization as a server but a 11 person is trying to acess he can not acess it. Can any body please help me where I download a patch that can be support more then 40 users . Because if I am going to change the operating system of server I have to change hole organization structure.