Should you want to include a video on a webpage (and this is not compulsory) you first need to have a video (edited if necessary) in your website folder.
The video an be an .mp4, a .fla or a YouTube (as an MP4 file).
On the webpage you want the video to appear:
A video window will appear.
In the Properties Window then setup your video, with teh source file and the video play size.
The video will play only in the browser.
The controls are simple - play - stop - sound and full screen.