[Xeth]

If you have XP Pro (only pro) you can fix your reservebandwidth from default of 20% to 0%. Type GPedit.msc in run. 1)Under the Local Computer Policy, click Administrative templates. 2) on the right double click Network. This opens the tree on the right side. 3)Now double click the Qos Packet Scheduler. Now Double click Limit reservable bandwith. This will open the properties box for the Qos packet scheduler. Under the settings tab (which will open by default) click enable, then change the % from 20 to 0. Now windows won't slow down your broadband! Bad windows, bad, bad!
There is a bandwidth test as an extension.

[KoRn]

Nice tip!!

I read about that a long time ago and had forgotten about it. It may also work to disable that feature all together.