open more boxes than the server let me? for example at a server i am it let me open only 2 box.. is there any way to open more? ??

Not enough informations

hide process ? google for aps that do that

try use second windows user

virtual machine?

Or check if they arent checking the IP server side, hook functions they are using to check for boxes

http://soft.softodrom.ru/ap/Sandboxie-p4879

try this soft should help

its protection related to lameguard that send encrypted info to server when u type ur user and pass.
its either you get program to crack it or simply run game on virtual machines