Often use a laptop in a public place? You must use this application to make it more secure. If there is someone who tries to take the laptop and unplug the power cable on it, then the application ALARM will sound a loud alarm sound. So you will hear if the laptop you're in trouble.

Sound the alarm will stop if the power cord is plugged back, or your login. Sound the alarm in the form of a siren is directly available in this application. This application is a free application, the Open Source for Windows XP. In addition, it supports multilingual applications. Its consumer was fairly easy since all automatic. The application can also be upgraded to monitor other cable connections to trigger an alarm as the network cable and USB.

Link: http://alarm.sourceforge.net/