Unfortunately, I'm not great unlike many of you fine people when it comes to computers, But I have tried downloading the new patch and something popped up saying the wzmss.dll is missing. I have no idea where this file is or how to change, I don't even know where the MapleRoyal file is.
Mapleroyals should download under your program Files. If you're getting that error you need to make sure the client is inside the folder too. You probably downloaded the client not the set up.