lock key

Lock Programs and Encrypt Files and Folders.

Windows Desktop Lock can simply lock your PC

Windows Product Key Viewer is a free utility that will display Windows key.

Windows Key Disabler is a small application that allowing you to disable key.

Find and recover your WiFi key from your wireless router.

Magic Boss Key allow you to hide active program window immediatlly.

Wi-Fi encryption key creator

Returns a random key from your hash, but won't repeat until it's done every one.

I needed a Ruby Hash class that could extract a random key from the keys .

this application can lock a folder , using feature of OS registery