As I said, you can store any number of username and password and all these information are protected with a password that you choose. Moreover, it is a portable application, which means you can securely carry your login information on a USB stick and can be use them from anywhere.
Create a directory on your hard drive or a flash drive or some other portable device that will house Secret Keeper. Extract SecretKeeper.exe from SecretKeeper.zip to that directory. Double-click on SecretKeeper.exe. At first time use, you will enter the password that you will use to gain access to the user names and passwords you will store in Secret Keeper.