Streaming video in flash... how?


I’ve got no experience at all with streaming video in flash
and have the following problem:

I’ve got a asf-file which I want to play in my flash-file.
I also want to have a video controller in flash with play,
stop, etc buttons…

Is this possible?

I can (if there’s no other way) change the asf into another
video format but I cannot embed the video cause they will
be added by a content management tool.