That's the way to do it. It won't show you the maximum throughput though because of the overhead of the OS and the chosen file copy mechanism will throttle the throughput somewhat. I've also found it's worth repeating the test say five times and taking the average as little bits of disk activity or other traffic on the network can easily skew a single result. The file size can also affect the result - I tried a huge file once and saw mega-throughput fr the first ten seconds or so until the cache memory in the disk controllers ran out, then it settled back to a slower rate. To see things like this, have task manager or perfmon showing the network performance on the machine while the test runs
