YouTube Videos Do Not Work in .CHM Files Anymore?
In our .CHM help file, we have several videos embedded from our YouTube channel.
These videos worked fine before, but now the CHM viewer is displaying an error message instead of playing the video.
Q: We would like to know what could be causing this issue and how we can fix it.
HTML Help Viewer Blocks YouTube Embedded Videos on Windows 11
If you are using Windows 11, embedded YouTube videos will not work in the HTML Help Viewer.
It happens because HTML Help Viewer is based on the legacy Internet Explorer which is permanently disabled and removed from Windows 11. Therefore, the HTML Help viewer can no longer render modern HTML5 and JavaScript-based content including YouTube.
Please note that this issue is not related to HelpSmith itself. Below we will try to suggest several possible solutions.