The most ubiquitous video player on the web today is the Flash Video player. Have your legacy video converted to a version that plays well within the Flash player. The converted file will be returned to you along with the html required to embed it in an html page.
When putting PowerPoint content on the web, Moonlight Multimedia highly recommends you first convert your slideshows to the Flash format using one of the iSpring family of products. If the free version doesn't meet your needs, and you only have a small number of files to convert, we can convert files for you.
Contact us for more information.