In most cases using a No-CD or Fixed EXE will solve this problem! Some original games do not work when a certain application has been installed, like DAEMON Tools.When using Fixed Files make sure to use a Firewall which controls outgoing traffic, as some games call back to report the use of these modified files!.
When this happens use the original EXE to play online, else you could find yourself banned from the game! Game or Patch Questions? Visit FileForums