Detect connection speed

I'm developing an application that must distinguish between high bandwidth and low bandwidth connection... how is it possible to do this whitout sending/receveing packet?
[178 byte] By [Alortesfbfhfgytytua] at [2007-10-1 8:42:50]
# 1
if you can't send/receive packets, why do you care how fast their connection speed is? no seriously, you'll have to be more specific with your question/issue. i mean, you can have a popup windows and just ask the user, but i'm guessing that's not what you want either.
wbrackena at 2007-7-9 22:58:12 > top of Java-index,Administration Tools,Sun Connection...