The appropriate fix may depend on the version of Windows that is running on your computer and when CTI Navigator Desktop was installed.
Follow the instructions below appropriate for the function you were using in CTI Navigator Desktop when the error occurred: must be assigned administrative privileges in Windows Vista or Windows 7 to utilize Windows services (such as accessing the Internet or compacting local files).
However, most errors result from a corrupt or damaged version of the ntdll DLL file itself, corrupt hardware drivers, or issues between Windows and other programs.
To give the program administrative privileges, : For old installations of CTI Navigator Desktop in Windows XP to be able to automatically access the Internet, either (a) the Windows DCOM function may need to be enabled and set to use its Tunneling protocol, (b) the Windows XP code for Internet access must be upgraded to use Microsoft's more advanced ". Otherwise, Windows will display a Permission Denied" error when CTI Navigator tries to access the Internet.
To enable the Windows DCOM function and set it to use the Tunneling protocol in Windows : To fix a "Permission Denied", "Remote Calls Not Allowed", or "Permission to use Object Denied" error in Windows 2000, or if the preceding does not fix the error when using CTI Navigator's Internet functions in Windows XP, 7 or Vista installed If you are using Mc Afee's firewall, ensure that (1) CTI Navigator is granted "full access"; and (2) the "Mc Afee Redirector" proxy services (if installed) are disabled (see related articles below).
Also, others reported random freezes throughout the game.
After log in, launcher will starts to "Retrieving patcher" it can take few minutes, so dont worry about that there is like "frozen" or something.