add: break; case this.ROOT_KEY_CURRENT_USER: root = "HKEY_CURRENT_USER"; 
context:   toString: function() {    var root;    switch (this._root) {    case this.ROOT_KEY_LOCAL_MACHINE:      root = "HKEY_LOCAL_MACHINE";      break;    default:      LOG("unknown root key");      return "";    }    return root + "\\" + this._path;  }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/43572d007942d00c2c1a62a4e86313dffb6da2cc/nsPostUpdateWin.js/clean/toolkit/mozapps/update/src/nsPostUpdateWin.js