Originally Posted by
SE
We previously confirmed an issue wherein the game file “FFXI.dll” was being removed by some security software. After working with the security software developers, we are pleased to announce that the issue has been resolved.
In cases where the game file was quarantined, we ask that you please update to the latest version of your security software.
We will continue to ensure that other software programs do not cause this issue.
As a preventative measure, users can add the FINAL FANTASY XI files as exceptions in the security software settings. This will prevent the security software from inadvertently removing or quarantining the game files.
* Please consult your security software for instructions on adding exceptions.