If you want the definitive 3.3.5a experience with a Spanish-speaking community, NaerZone is the top choice. The "Complete Client" download makes it accessible even for those who aren't tech-savvy. Nuevo Cliente Version 3.3.5a - NaerZone
You need the specific "3.3.5a" game client. NaerZone usually provides two main ways to get it: descargar+wow+naerzone+warcraft+335+gratis+install