This is a full, standalone auto-install of the whole Emulator and all its components , you should need nothing else. It includes both AX_CLASSIC and PEQ versions (you can alter from one to another, migrate characters) of the database, has back up/restore, and even more features.
It is the easiest way to go, if you just want to play (and not become an OS Guru). It even helps you with the desktop short cut needed for the client.
Download it here