Traffic shaper for win32

I'm desperatly looking for a (preferably freeware) Traffic shaper for win32.
I would settle with just beeing able to throttle my upload to a specific n of KB/s.

I have found two betas that might do the job, but they are beta and not really that stable or affordable for that matter, they are:
www.bandwidthcontroller.com
www.netlimiter.com.

Someone mentioned the QoS "shaper" that comes with winXP, but that is not what Im looking for (and I think it sucks because I cant get it working).

Anyone?