Locking Flash

I am aware about all of the bulletins already posted about encryption and locking for your flash drive...But, a couple days ago, I was looking through the forums and found a link that showed the PortableApps Menu with a small box attached to the top for what I believe wass password portection, I've sepent hours looking through the forums but cannot find the post anymore. If anyone knows the link for this, could you please give it to me. Thanks.