LAN Speed Test is designed to be a rock solid tool to measure your file transfer and network speeds (wired & wireless) easily and accurately. It does this by building a file in memory, then transfers it both ways (without effects of windows file caching) while keeping track of the time, and then does the calculations for you. Simple concept and easy to use. You'll find that LAN Speed Test will quickly become one of your favorite network tools. As with all Totusoft software, LAN Speed Test is completely portable - no dll's or registry entries.