Bywifi is a freeware Video Streaming Downloader for Windows that can accelerate, download and transcode streaming web videos. It supports most of the video websites, such as Youtube, Dailymotion, Metacafe, MySpace, Yahoo, etc and streaming formats like FLV, WMV, RM, RMVB, etc. The program integrates in to browsers such as Internet Explorer, Mozilla Firefox and others. Moreover, it can transcode videos into mobile formats for mobile phones and PDA.

The application run silently in the system tray. Once a website with an embedded video is loaded it will automatically display an overlay and speed up the loading time of that video to avoid pauses during playback.

Bywifi will speed up video streaming automatically. You do not need to change any watching habits. It uses multiple technologies to speed up video streaming and said to be 3-5 times faster with it than watch video websites directly. The software supports Windows 95, 98, Me, NT, 2000, XP, 2003, and Vista [via]