A common technique is to use a somewhat generalized WAD that can be easily customized to then forward to another WiiBrew application stored on the SD card. Associated with WAD file generation are forwarders, which when loaded simply load another arbitrary application. WAD file creation seems to be an intricate process and tools are difficult to locate, and most are based on the. If a WiiBrew app isn't installed as a channel, it can usually only be launched from the Homebrew Channel itself. WAD files are often installed in the Wii System Menu to appear as channels, making launching easier.
If you wish to discuss legitimate WAD files, please ensure you make clear which file you are talking about and what you will use it for, to prevent people jumping to conclusions about your intentions.
Wiibrew does not in any way endorse piracy, and as such these uses of WAD files should not be discussed. Unfortunately, WAD files are often used to distribute pirated channels (both Virtual Console and WiiWare), due to the fact that they are also used by Nintendo and therefore easy to rip from the Wii and, for some WAD files, Nintendo's servers, and easy to create installers for.
