LockThis is a tiny freeware utility that makes it possible to password protects almost any programs or documents that are currently running or open, a perfect tool for people who often lend their PC to others.
To protect your documents or programs, all you have to do is pressing Ctrl key while minimizing the window of the program/document and supply the password in the dialog that follows. To restore or maximize the minimized window you need to enter the correct password.
However, anyone can very easily deactivate the tool; there is no password protection for deactivating the tool. By hiding the program from the taskbar after activating may help you.
Similar Topics: Lock your PC using a USB drive