You should actually read this... lol
1) What is client sided?
Answer: Effects you and only you, just like Chams
2) And server sided?
Answer: Effects everyone, meaning every single person can see whats happening(some OPK's are server sided).
3) I got a bypass but MHS and CE are detected!!
Answer: Make a UCE or go find one, GOOGLE IT
4) OMG NEXON IS PATCHING THE GAME TOMORROW?
Answer: It doesn't matter, I will try my best to make another bypass and stuff, but VIP will always be there for people that want to hack.