Warning! Some information and techniques detailed on this page may be out of date. For more up-to-date information on this topic, we recommend that you check the following page: Automatic generation of YouTube and Vimeo embed codes and improved High-DPI screen support in HelpNDoc 6.7. We previously covered how to embed a YouTube video in your CHM or HTML help files. While YouTube is a great platform to share videos, some might prefer one of its main competitor, Vimeo.