DOP-Mii, originally known as DOP-IOS MOD, is a modification of Dop-IOS, which allows you to choose which IOS you would like to use to install other IOSes. In order to maintain a listing on WiiBrew, this version omits patching the Trucha bug back in.
Source: http://code.google.com/p/dop-mii/source/checkout
Source: http://code.google.com/p/dop-mii/source/checkout