User-110466603 posted
I could never figure out how to do this in ASP.NET. I was able to do this in silverlight with a few classes people had provided and utilizing the WriteableBitmap class.
Here is a link on stackoverflow that may help:
http://stackoverflow.com/questions/441141/wcf-service-to-create-video-thumbnails
Also i thought I read it could be done with the windows media SDK, but I never tried it
http://msdn.microsoft.com/en-us/library/dd757738%28VS.85%29.aspx
I'm definitely curious to know what you end up doing so keep us posted!