Great work, as always.
I have a request tough. The Bar control has a 'Units' parameter for the 'Bytes Read/written' values, while the 'Text' control does not, the latter is automatically adapting the units used to the current speed. While of course this is a nice feature to have, not giving people the opportunity to switch off this automatic choice of units has two "problems":
1. If we uncheck the 'Append Units' checkbox to save screen space we don't know whether we are seeing bytes, KB, MB, GB or TB (yes, mine are that fast

).
2. I personally do not care about bytes and KBytes, I'd rather round them down to '0', and only see the current activity in MB/sec.
Also, the 'Bytes Read' and 'Bytes Written' value names may be misleading. At first I assumed it was a cumulative value (like the one Process Explorer is displaying). Maybe it would be better to call them something like 'data rate', 'reads/sec', etc.?
Thanks.