I could be mistaken, but WA3 feels a lot like WMP7 with video, and I suspect maybe it's being used to control a WMP7 frame of some type. The seek bar seems snappier than WMP7's, but I'm not sure how to compare the video speed to 6.4. I still have 6.4 lying around on my PC but haven't used it in ages.

I guess YMMV... It works well for me.