Format Factory is a free, all-in-one converter that handles video, audio, and even images.
WinAVI Video Converter has . The official developers have moved on, meaning the software is no longer updated to handle modern video codecs like H.265 (HEVC) or AV1, nor is it optimized for modern operating systems like Windows 11.
It does not natively support modern high-efficiency formats like H.265/HEVC or AV1.
: Converts video, audio, and image formats, repairs damaged media files, and rips optical DVDs into modern digital formats. 3. VLC Media Player
Given the risks, the only safe and recommended approach is to use legitimate software. If you are determined to use WinAVI Video Converter 11.6.1.4734 specifically, you should be aware that it is an product. This means the developer no longer supports it, and it may have unpatched vulnerabilities. Its successor, the Chinese version called Magic Video Factory (魔影工厂), is available for free, but its development also appears to have stalled in recent years.
Here is a blog post discussing WinAVI Video Converter, its current status, and safe alternatives.
Because development on WinAVI has effectively ceased, hunting for a working product key is a counterproductive security hazard. Today, there are many robust, secure, and entirely free modern software options that outperform legacy tools. The Danger of Searching for Pirated WinAVI Serial Numbers