myMac
myMac allows access to certain hidden or unsupported preferences in the MacOS system.
DOWNLOADmyMac allows access to certain hidden or unsupported preferences in the MacOS system. Particularly it allows you to make certain changes that other such applications do not.
myMac makes changes to your system. In most cases should your system fail to properly function after these changes, you can either undo the change or boot from the install CD and run a permissions repair.