system.dll problem

[kerr]

i am playing on my pc a week now and all going well
now i want to install this server to a friend and i cant
the updater gives me an error that system.dll cant read or smth
i read the forum for solutions but i cant fix it
i rename the updater and l2.exe didn't start at all
i download .net framework and didnt solve anything

can anyone help or smth?

[Shabaka]

folder /system to antivirus exceptions