Being free and portable, the Lite version is an excellent place to start, if you really want to know how your network is truly performing. LAN Speed Test 4.4 registeration keys comes in two flavors – Lite (the free version reviewed here) and a paid version that allows for more thorough tests and that provide a wider variety of data. LST Server can be used as a standalone tool if so desired. You can tell the program to perform a standard test – which will save the data used in the hard drive of your choice – or use its LST Server, which will write the test file to the server’s memory, thus giving you a more accurate picture of your network’s true speed and performance.