Powerpoint to Video - Server/command Line

Looking for software which will work on a web server to convert ppt to video.
Users will upload a powerpoint video to a web server and it will automatically be converted to video.  
I have found PPT to video Scount: http://www.bytescout.com/purchase_ppttovideoscout_developer.html but it will cost $2995 and large outlay for a smallish project.  This can convert on the server by the command line interface.
Is there any alternatives?
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There are several hosted services that already do this:
If you don't want to go with a hosted solution, perhaps one of these offers a server solution.
And Articulate is a great product: http://www.articulate.com/
Some other options here: http://tools.allflashtools.com/Powerpoint_to_Flash_Converters-7.html

harris9999Author Commented:
Don't want to use a hosted service. Want to use it on a website where users upload ppt file and it is automatically converted to a video format.
None of them other solutions look as though they support this on a server.

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