Hmm, it does not seem to work for me.
I have the newest SVN, I replaced the DLL in the mediaportal directory and even rebooted. When watching videos, I still see the Haali icons and they don't disappear when stopping the video. It's even more weird, I see some flickering in the icon bar quickly adding and removing a Haali icon even if the video is stopped. Sometimes even then a new instance of the Haali icons is added. No idea why this happens. BTW, I'm using Win7 x64 and the newest SAF.
And are those icons getting removed if you hover mouse cursor over them?