Board Thread:Questions and Answers/@comment-41.133.32.2-20131002163809

I recently reopened a 3.1.2 Tekkit server that I ran about a year ago. Since then, there has been a "gamemode hack" which lets the users use the NEI interface to give themselves creative amongst other things on my server. I have been searching for a few days now trying to find out how to stop them. I have downloaded all sorts or replacements for the NEI mod which is supposed to stop this but people are still able to use this hack on my server. Other people have said that it is easier to simply remove the mod from my server completely. I am more than happy to do this, however, every time i delete the NEI file from the mods folder and start the server, Tekkit has reloaded the NEI file back into the mods folder. This is very annoying. Is there no way of doing this? I am using a professional host for this server, I'm not hosting it myself. Can someone please help because i have now had to whitelist this server until i can work out how to do this. Thanks for your help in advance. 