How to lock your computer with mobile phone ?

How about locking your system whenever you disconnect your bluetooth
device or you go awayleaving your pc ? BtProx or Bluetooth Proximity
Lock Utility is a tool with which you don't need to lock your PC
everytime you go away.
This tool can be used to lock your System anytime your bluetooth
device gets disconnected from the PC either inititated by the user or
if the user moves so far away from the PC that the device gets
disconnected as it goes out of range. Thus whenever you go away from
your system, you don't need to manually lock it. It'll automatically
get locked.

How to lock your computer with your mobile phone ?
The locking procedure using this tool is more handy and sensible. The
standard locking takes place after a certain time without
consideration of where the user is even if the user is sitting in the
same room. Infact it'll lock even if user is reading anything on the
computer without ressing any key. Bluetooth Proximity ensures that PC
gets locked only if the user leaves the proximity of the computer.

Another benefit of using the Bluetooth Proximity Lock Utility is that
it can launch an application if the device gets connected or
disconnected from the system.
It can for instance be used to perform an automatic system cleanup,
unmount an encrypted hard drive or run a system tool whenever the
device status changes.
The time between the PC getting locked and Bluetooth device being
disconnected can be configured from options available in the tool.
Moreover above that the tool is open source for Windows. The tool as
well as source code for it can be freely downloaded. This tool might
not sound to be extreme utility but still it is a unique concept and
for users of bluetooth devices might be an excersbale option.

Download link.http://softwares1.com/freedownload/BtProx/