An older but multi-functional tool for WAD management and IOS switching.
Homebrew WADs (free, original applications) are completely legal.
Specific system WADs are used to change the region of the console or install alternate versions of the Wii's firmware (IOS files). This allows, for example, Japanese games to run on North American consoles.
: Shortcut channels that launch applications stored on an SD card or USB drive (e.g., launching USB Loader GX directly from the main menu).
: Experienced users may install specific IOS WADs to improve compatibility with certain homebrew apps or hardware.
On the other hand, Wii WADs also offer many benefits: