Image Grabber II .NET is the perfect program to create a contact sheet (screenshot) of any video that is playable via DirectShow. Just open the video, set some options, let the program grab the frames (the button with the film strip icon), and save the joined image. Basta.
Since the author's website is almost constantly down, you can download the .NET version of ImageGrabber II here on my site. If I can find the time, maybe I'll write some short tutorial for this fabulous program.
Files: 7z
Author's Site
