JW Desktop Player is an AAC, FLV, MP3 or MP4 player for your PC.
It can play any file you have stored in your driver. But you can also use its search capabilities to search for video in the Internet, just enter any keyword in the "Search" field. After a while, the program will show you a list of the videos it has found on the right of your screen. You can choose to watch any of them by double clicking on its thumbnail.
Once the video is loaded, you can watch it into the program, using the provided common controls (play/pause, back, forward, volume up/down). You can also zoom the image, or choose to view the video directly from the page it was taken, through your browser.
The "Open" button lets you load a file in any of the supported formats, and they play it using the same controls. The online feature is just for .FLV videos, but if you use the Open button you can play any supported format, not only videos, but music, as .MP3 files.
If you click on the background image (or the video being played), the "Search" field appears, allowing you to search for online video.