FreeSpeedVideo

Free Speed Video is a video utility for Windows users. With this program, you can easily speed up or speed down videos, get video fast forward effect, or video slow motion effect.

The program is easy to use: first, you will add the source video files and then you will input the new speed into the "Speed x" field. If the speed is bigger than 1, the program will speed up the video, and if the speed is between 0 and 1, it will speed down the video.