FLocker is a smart little freeware program that allows the user to easily compile any file into an encrypted, password-protected package.

With the help of the neat FLocker, you will be able to easily encrypt a file, then give it to a friend, and they will be able to view or open the file without needing any external applications. All that the friend has to do is provide the password you have chosen when you created the compiled encrypted file....Read more about FLocker