   C00C000A000E0B0000BD00DB /* PerferenceWindow */ = {    isa = PBXGroup;    children = (     C00C000F000E0F0A00BD00DB /* PreferencesWindowController.h */,     C00C00A0000E0F0A00BD00DB /* PreferencesWindowController.m */,     C00C00A0000E00AC00BD00DB /* GeneralViewController.h */,     C00C00A0000E00AC00BD00DB /* GeneralViewController.m */,     C00C00A0000E00AC00BD00DB /* GeneralViewController.xib */,     C00C00A0000E000000BD00DB /* AboutViewController.h */,     C00C00A0000E000000BD00DB /* AboutViewController.m */,     C00C00A0000E000000BD00DB /* AboutViewController.xib */