BTProximity 184.108.40.206 is free to download from our software library. This free software was originally developed by Dave Amenta. The latest version of the program can be downloaded for PCs running Windows XP/7/8/Vista, both 32 and 64-bit. The most popular version of the BTProximity is 1.0. The program lies within System Utilities, more precisely Device Assistants.
From the developer:
BTProximity is an application for Windows Vista and Windows 7 that can detect when your bluetooth-enabled phone has come into range, and unlock your computer. When the device moves out of range, the computer is automatically locked. This isn’t a fake lock window, the computer is locked using Windows Security.
You may want to check out more software, such as Roxio Media Manager or EasyGPRS, which might be similar to BTProximity.