Hi Win7Ultimate user here. . .
I've just downloaded SQL Server Express 2008 WT from Microsoft Downloads using the manual download feature and noticed that TB Meter did not report any download traffic during the download, though "My Downloads window" showed the percentage download increasing.
Wondered if MS are being sneaky and hiding their traffic in the kernel, so TBBMeter can't report it. This isn't the issue of Windows Update sneakly downloading before the user requested to install the update as this was a very specific piece of ms development software that I needed.